c programs with solutions-2

8/3/2019 c Programs With Solutions-2

1/48

C PROGRAMS WITH SOLUTIONS- 2

NOTE: THIS ARE THE CONFIDENTAL AND INTERNAL PROGRAMS WITH

OUTPUTS.

C PROGRAMS FOR BEGINEERS(FRESHERS) FOR THE INTERVIEW POINT OFVIEW.

1.C program to perform arithemetic operations*/

#include

main()

{

int a,b;

clrscr();printf("Enter value for a:");

scanf("%d",&a);

printf("/nEnter value for b:");

scanf("%d",&b);

printf("/n%d+%d=%d",a,b,a+b);

printf("/n%d-%d=%d",a,b,a-b);

printf("/n%dX%d=%d",a,b,a*b);

printf("/n%d/%d=%d",a,b,a/b);

}

o/p:

Enter value for a:5

Enter value for b:2

5+2=75-2=3

5X2=10

5/2=2

2. C program to calculate simple interest*/

#include

main()

{

float p,n,r,ci;

clrscr();

printf("Enter princiole :");

scanf("%f",&p);

printf("Enter Time Period:");

scanf("%f",&n);

printf("Enter Rate of Interest:");

scanf("%f",&r);

ci=(p*n*r)/100;

printf("Simple Interest=%f",ci);

}


2/48

o/p:

Enter principle :5700.50

Enter Time Period:1.6

Enter Rate of Interest:2.5

Simple Interest=228.020004

3. C program to calculate Compound interest*/

#include

#include

main()

{

float p,n,r,ci,d;

clrscr();

printf("Enter principle :");

scanf("%f",&p);

printf("/nEnter Time Period:");

scanf("%f",&n);

printf("Enter Rate of Interest:");

scanf("%f",&r);

d=(1+r*0.10);

ci=p*pow(d,n);

printf("Simple Interest=%f",ci);

}

o/p:

Enter principle :2000

Enter Time Period:2

Enter Rate of Interest:2

Simple Interest=2880.000244

4.Distance Travelled*/

#include

main()

{

float a,u,t,dis;

clrscr();

printf("\nEnter velocity, acceleration and time:");

scanf("%f%f%f",&a,&u,&t);

dis=(u*t)+(0.5*a*t*t);

printf("Distance travelled=%f",dis);

getch();

}

5. C program to convert Temparature From Faranheat To Celsiuls*/

#include

main()

{

float ft,ct;

clrscr();


3/48

printf("Enter Faran Heat Temparature:");

scanf("%f",&ft);

ct=(ft-32)*5/9;

printf("/ncelsius Temparature=%f",ct);

}

6. C program to convert Temparature From Celsius To Faranheat*/

#include

main()

{

float ft,ct;

clrscr();

printf("Enter celsius Temparature:");

scanf("%f",&ct);

ft=(ct*9/5)+32;

printf("/nFaran Heat Temparature=%f",ft);

}

7. C program to calculate cube of the number*/

#include

main()

{

int a;

clrscr();

printf("Enter value for a:");

scanf("%d",&a);

printf("%d^3=%d",a,a*a*a);

}

o/p:Enter value for a:5

5^3=125

8. *Swapping 2 nos Without Using Third Variable*/

#include

main()

{

int a,b;

clrscr();

printf("/nEnter values for a,b:");

scanf("%d%d",&a,&b);printf("/nBefore swaping a=%d b=%d",a,b);

a=a+b;

b=a-b;

a=a-b;

printf("/nAfter swaping a=%d b=%d",a,b);

getch();

}

o/p:


4/48

Enter values for a,b:10 15

Before swaping a=10 b=15

After swaping a=15 b=10

9. Even Number Odd Number Checking in C*/#include

main()

{

int a;

printf("enter values for a");

scanf("%d",&a);

if(a%2==0)

{

printf("%d is even"a);

}

}

10. Finding Roots Of Quadratic Equations*/

#include

#include

main()

{

int a,b,c;

int alpha,beta,root;

clrscr();

printf("\nEnter a,b,c:");

scanf("%d%d%d",&a,&b,&c);

root=sqrt((b*b)-4*a*c);

alpha=(-b+root)/(2*a);beta=(-b-root)/(2*a);

printf("alpha=%d",alpha);

printf("beta=%d",beta);

getch();

}

11. /*Comparing 2 Numbers Using Simple if Condition in C*/#include

main()

{

int a,b;

printf("enter values for a,b");scanf("%d%d",&a,&b);

if(a>b)

{

printf("%d is big"a);

}

if(a


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if(a==b)

{

printf("%d and %d are equal"a,b);

}

}

12. /*Leap Year Using Simple if-else Condition in C*/#include

main()

{

int year;

clrscr();

printf("/nEnter year:");

scanf("%d",&year);

if(year%4==0)

printf("/nLeap year");

else

printf("/nNon Leap year");

getch();

}

13. /*Triangle Checking Using Simple if-else Condition in C*/#include

main()

{

int a,b,c;

clrscr();

printf("Enter 3 angles:");

scanf("%d%d%d",&a,&b,&c);

if(a+b+c==180)

printf("/nTriangle is valid");else

printf("/nTriangle is not valid");

getch();

}

o/p:

Enter 3 angles:60

60

60

Triangle is valid

Enter 3 angles:45

45

80

14. /*Biggest Number Among 4 Numbers*/#include

main()

{

int a,b,c,d;

clrscr();


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printf("enter values for a,b,c,d");

scanf("%d%d%d%d",&a,&b,&c,&d);

if(a>b && a>c && a>d)

printf("a(%d) is big",a);

else if(b>c && b>d)

printf("b(%d) is big",b);

else if(c>d)

printf("c(%d) is big",c);

else

printf("d(%d) is big",d);

getch();

}

15. /*Leap Year Using Simple if-else Condition in C*/

#include

main()

{

int a,b,c,d;

clrscr();

printf("enter values for a,b,c,d");

scanf("%d%d%d%d",&a,&b,&c,&d);

if(a>b && a>c && a>d)

printf("a(%d) is big",a);

else if(b>c && b>d)

printf("b(%d) is big",b);

else if(c>d)

printf("c(%d) is big",c);

else

printf("d(%d) is big",d);

getch();

}

16. /*program to check whether a point lies on x-axis or y-axis or onthe origin*/

#include

main()

{

int x,y;

clrscr();

printf("Enter a point(x,y)");

scanf("%d%d",&x,&y);

if(x==0 && y==0)

printf("/nPoint lies on the origin");

else if(x!=0 && y==0)

printf("/nPoint lies on x-axis");

else

printf("/nPoint lies on y-axis");

getch();

}

o/p:

Enter a point(x,y)0 0


7/48

Point lies on the origin


Point lies on x-axis


Point lies on y-axis

17. /*program to check whether a point lies inside or outside or on thecircle*/

#include

main()

{

int x,y,r,d,ds;

clrscr();

printf("Enter a point(x,y)");

scanf("%d%d",&x,&y);

printf("/nEnter radius of the circle");scanf("%d",&r);

d=r*r;

ds=((x*x)+(y*y));

if(d==ds)

printf("/point lies on the circle");

else if(ds>d)

printf("/nPoint lies outside of the circle");

else

printf("/nPoint lies inside of the circle");

getch();

}

18. /*Program to find whether entered character is in uppercase orlowercase*/

#include

main()

{

char ch;

clrscr();

printf("/nEnter a character:");

scanf("%c",&ch);

if(ch>=65 && ch=97 && ch=48 && ch


8/48

19. /*Finding ASCII Values of characters using while loop*/

#include

main()

{

int i=65;

clrscr();while(i


9/48

printf("Sum of digits of %ld =%ld",m,sum);

}

o/p:

Enter any number:92346

Sum of digits of 92346 =64329

22. /*Palindromme Number Using While Loop*/

#include

main()

{

long int n,d,sum=0,m;

clrscr();

printf("Enter any number:");

scanf("%ld",&n);

m=n;

while(n!=0)

{

d=n%10;

sum=(sum*10)+d;

n=n/10;

}

if(m==sum)

printf("%d-Palindrome",m);

else

printf("%d-Not Palindrome",m);

}

o/p:


1234-Not Palindrome


121-Palindrome

23. /*Amstrong Number Using While Loop*/

#include

main()

{

long int n,d,sum=0,m;


scanf("%ld",&n);

m=n;

while(n!=0)

{d=n%10;

sum=sum+(d*d*d);

n=n/10;

}

if(m==sum)

printf("%ld is amstrong number",m);

else

printf("%ld is not amstrong number",m);


10/48

}

o/p:


153 is amstrong number


235 is not amstrong number

24. /*strong number: The sum of factorial of individual digits should be equal to the

original no. eg:145=(1!+4!+5!)*

#include

main()

{

long int n,d,sum=0,m,i,f;

clrscr();


scanf("%ld",&n);

m=n;

while(n!=0){

d=n%10;

f=1;

for(i=d;i>=1;i--)

f=f*i;

sum=sum+f;

n=n/10;

}

if(m==sum)

printf("%ld is strong number",m);

else

printf("%ld is not strong number",m);

getch();

}

o/p:


145 is strong number


568 is not strong number

25. /*strong number: The sum of factorial of individual digits should be equal to the

original no. eg:145=(1!+4!+5!)*/

#include

main()

{

long int n,d,sum=0,m,i,f;

clrscr();


scanf("%ld",&n);

m=n;


11/48

while(n!=0)

{

d=n%10;

f=1;

for(i=d;i>=1;i--)

f=f*i;

sum=sum+f;

n=n/10;

}

if(m==sum)

printf("%ld is strong number",m);

else

printf("%ld is not strong number",m);

getch();

}

o/p:


145 is strong number

Enter any number:568568 is not strong number

26. /*GCD of two numbers using while loop*/

#include

main()

{

int a,b,l;

clrscr();

printf("/nEnter nos:");

scanf("%d%d",&a,&b);

l=gcd(a,b);printf("GCD=%d",l);

getch();

}

gcd(int a,int b)

{

int c=0;

while(1)

{

c=a%b;

if(c==0)

return b;

a=b;

b=c;}

}

o/p:

Enter nos:200 800

GCD=200


12/48

27. /*LCM of two numbers using while loop*/

#include

main()

{

int a,b,l;

clrscr();printf("/nEnter nos:");


l=lcm(a,b);

printf("Lcm=%d",l);

getch();

}

lcm(int a,int b)

{

int i=1;

while(1)

{

if(i%a==0 && i%b==0)

return i;

i++;

}

}

o/p:

Enter nos:35 50

Lcm=350

28. *Printing Table using while loop*/

#include

main()

{

int n,i=1,t=1;

clrscr();

printf("/nEnter a table:");

scanf("%d",&n);

while(i


13/48

5 X 5=25

5 X 6=30

5 X 7=35

5 X 8=40

5 X 9=45

5 X10=50

29. /*Printing First 20 Odd Numbers using while loop*/

#include

main()

{

int count=0,i=1;

clrscr();

while(count!=20)

{if(i%2!=0)

{

printf("%d\n",i);

count++;

}

i++;

}

getch();

}

30. /*Decimal To Binary Conversion using while loop*/

#includemain()

{

int n,i=0,a[20],d,j,m;

clrscr();

printf("Enter decimal number:");

scanf("%d",&n);

m=n;

while(n!=0)

{

d=n%2;

a[++i]=d;

n=n/2;

}printf("Binary equivalent of %d=",m);

for(j=i;j>=1;j--)

printf("%d",a[j]);

getch();

}

31./*Binary To Decimal Conversion using while loop*/


14/48

#include

#include

main()

{

long int n,m;

int i=0,sum=0,d,j;

clrscr();

printf("Enter binary number:");

scanf("%ld",&n);

m=n;

while(n!=0)

{

d=n%10;

sum=sum+(d*pow(2,i));

n=n/10;

i++;

}

printf("Decimal equivalent of %ld=%d",m,sum);

getch();

}

32. /*Menu Driven Program For Arithematic Operations*/

#include

main()

{

int a,b,res;

char ch;

printf("\n Enter values for a and b:");


printf("\nEnter choice:");

scanf("%s",&ch);

switch(ch)

{

case '+': res=a+b; break;

case '-': res=a-b; break;

case '*': res=a*b; break;

case '/': res=a/b; break;

case '%': res=a%b; break;

default: printf("\n Enter correct choice:");

}

printf("Result=%d",res);

getch();

}

33. /*Menu driven program having the following options 1. Factorial of a number 2.

prime number 3. Even number*/main(){

int n,f,np,a,count=0,ch,i;

do

{

printf("/n1.Factorial of a Number");


15/48

printf("/n2.Prime Number or Not");

printf("/n3.Even Number or Not");

printf("/n4.Exit");

printf("/nEnter choice:"); scanf("%d",&ch);

switch(ch)

{

case 1:

printf("/nEnter number:"); scanf("%d",&n);

f=fact(n);

printf("/n%d!=%d/n",n,f);

break;

case 2:

printf("Enter number:"); scanf("%d",&np);

for(i=1;i=1;i--)

f=f*i;

return f;

}

34.About U/*Printing Number And its Squares Using For Loop*/s|

s|
http://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/AboutUs.htmlhttp://www.yellowpen.co.in/FAQS.htmlhttp://www.yellowpen.co.in/FAQS.htmlhttp://www.yellowpen.co.in/AboutUs.html


16/48

Contact Usmain(){

int i;

clrscr();

printf("Number/tSquare");

for(i=1;i


17/48

o/p:

1

2 2

3 3 3

4 4 4 4

5 5 5 5 5

37. /*Printing Format Using For Loop */main()

{

int i,j;

clrscr();

for(i=1;i


18/48

45

5

39. /*Printing Format Using For Loop 1

2 1

3 2 1

4 3 2 1

5 4 3 2 1

6 5 4 3 2 1

7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

9 8 7 6 5 4 3 21

main(){

int i,j,n;clrscr();printf("Enter number:");

scanf("%d",&n);for(i=1;i=1;j--)

printf("%3d",j);printf("\n");

}getch();

}

o/p:Enter number:9

12 13 2 14 3 2 15 4 3 2 16 5 4 3 2 17 6 5 4 3 2 18 7 6 5 4 3 2 19 8 7 6 5 4 3 2 1


19/48

40. /*Printing Format Using For Loop 5 4 3 2 1

4 3 2 1

3 2 1

2 1

1 */

main()

{

int i,j,n,m;

clrscr();

printf("Enter number:");

scanf("%d",&n);

m=n;

for(i=1;i=1;j--)printf("%3d",j);

printf("\n");

n=n-1;

}

getch();

}

o/p:

Enter number:5

5 4 3 2 1

4 3 2 1

3 2 1

2 1

1


20/48

41. /*Printing Format Using For Loop 1 2 3 4 5 6 78 9

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1 */main(){

int i,j,n,m;clrscr();printf("Enter number:");scanf("%d",&n);m=n;for(i=1;i


21/48

printf("Enter the range:");

scanf("%d",&n);

for(i=n;i>=0;i--)

printf("%2d",i);

for(i=1;i


22/48

{

t=n*i;

printf("%2dX%2d=%d/n",n,i,t);

}

getch();

}

o/p:

Enter a table:5

5 X 1= 5

5 X 2=10

5 X 3=15

5 X 4=20

5 X 5=25

5 X 6=30

5 X 7=35

5 X 8=40

5 X 9=45

5 X10=50

46. /*Printing Table Using For Loop */main()

{

int n,i,count=0;

clrscr();

printf("Enter number:");

scanf("%d",&n);

for(i=1;i


23/48

}

if(count==2)

printf("%5d",i);

count=0;

}

}

o/p:

2 3 5 7 11 13 17 19 23 29 31 37

41 43 47 53 59 61 67 71 73 79 83 89

97.

48. /*Printing Prime Numbers From m t0 n Using For Loop */main()

{

int m,n;

int i,j,count=0;

clrscr();

printf("Enter Starting Number:");

scanf("%d",&m);

printf("Enter Ending Number:");scanf("%d",&n);

for(i=m;i


24/48

else

{

printf("\nEnter non -ve exponent:");

scanf("%d",&n);

goto xy;

}

xy:

printf("\nGeometric Progression:\n");

for(i=0;i


25/48

printf("/n Small=%d",s);

}

o/p:

Enter Range:5

Enter elements:52 58 0 -8 6

Large=58

Small=-8

52. /*Finding Sum of even and odd Nos in Array*/main()

{

int n,i,ds=0,es=0,a[10];

clrscr();

printf("Enter Range:");

scanf("%d",&n);

printf("/n Enter elements:");

for(i=0;i


26/48

temp=a[i];

a[i]=a[j];

a[j]=temp;

}

}

}

printf("/nElements after sorting:");

for(i=0;i


27/48

}

55.

/*Subtraction Of Matrices Using Arrays*/main()

{

int i,j,r,c;

static int a[20][20],b[20][20],sum[20][20];

clrscr();

printf("Enter no.of rows:");

scanf("%d",&r);

printf("Enter no.of columns:");

scanf("%d",&c);

printf("Entet Matrix A:");

for(i=0;i


28/48

printf("Enter Matrix B:");

for(i=0;i


29/48

2 Column Sum=6

58./*Greatest Row Sum in the Array*/

main()

{

static int a[10][10],b[10][10],rs[10];

static int i,j,r,c,l;

clrscr();

printf("/nEnter No.of rows:");

scanf("%d",&r);

printf("/nEnter No.of columns:");

scanf("%d",&c);

for(i=0;i


30/48

{

if(i==j)

a[i][j]=0;

printf("%2d",a[i][j]);

}

printf("/n");

}

}

o/p:

Enter No.of rows:3

Enter No.of columns:3

Enter elements:

1 2 3

4 5 6

7 8 9

0 2 3

4 0 6

7 8 0

60. /*Identity Matrix Using Arrays*/

main()

{

static int a[10][10],b[10][10];

static int i,j,r,c;

printf("/nEnter No.of rows:"); scanf("%d",&r);

printf("/nEnter No.of columns:"); scanf("%d",&c);

printf("/nEnter elements:");

for(i=0;i


31/48

printf("/nEnter No.of columns:");

scanf("%d",&c);

printf("/nEnter elements:");

for(i=0;i


32/48

char s[20];

static int i,v,c,sc;

clrscr();

printf("/nEnter the string:");

gets(s);

for(i=0;s[i]!='/0';i++)

{

if(isalpha(s[i]))

{

if(s[i]=='a' || s[i]=='e' || s[i]=='i'||

s[i]=='o' || s[i]=='u')

v++;

else

c++;

}

esle

sc++;

}

printf("/nVowels=%d",v);

printf("/nConsonants=%d",c);

printf("/nSpecial Characters=%d",sc);getch();

}

o/p:

Enter the string:this is the computer lab

Vowels=7

64. /*Program to count Number of lines, Words and characters in the text*/#include

main()

{

char str[81], ctr;

int i=0,c=0,words= 0,lines = 0;

clrscr();

printf("Enter the string:");

while(1)

{

while((ctr=getchar()) != '\n')

str[i++] = ctr;

str[i] = '\0';

if(str[0] == '\0')

break ;

else

{

words++;

for(i=0; str[i] != '\0';i++){

c++;

if(str[i] == ' ' || str[i] == '\t')

words++;

}

}

lines = lines +1;

}

printf("\nNumber of lines = %d\n", lines);


33/48

printf("Number of words = %d\n", words);

printf("Number of characters = %d\n", c);

getch();

}

65. /*Program to check the character in the text*/main()

{

char s[100],c;

int i;

clrscr();


gets(s);

printf("/nEnter character to search:");

scanf("%c",&c);

for(i=0;s[i]!='/0';i++)

{

if(s[i]==c)

{

printf("/n %c found at %d",c,i+1);break;

}

}

if(s[i]=='/0')

printf("/n%c not found",c);

getch();

}

o/p:

Enter the string:this is c programming

Enter character to search:c

c found at 9


Enter character to search:d

d not found

66. /*Program to find number of occurances of a charactermain()

{

char s[100],c;

int i,count=0;

clrscr();


gets(s);

printf("/nEnter character to search:");

scanf("%c",&c);

for(i=0;s[i]!='/0';i++){

if(s[i]==c)

count++;

}

printf("/n%c found %d times",c,count);

getch();

}

o/p:



34/48

Enter character to search:m

m found 2 times

67.strlen()

68.strrev()

69.strcpy()

70.strcat()

71.strcmp()

72.strupr()

73.strlwr()

74. /*Finding String Length Without Using Library Function */

main(){

char s[20];

static int i,len;

clrscr();

printf("/nEnter string:");

gets(s);

for(i=0;s[i]!='/0';i++)

len++;

printf("Length of the string=%d",len);

getch();

}

o/p:

Enter string:this is c programmingLength of the string=21

75. /*String Reverse Without Using Library Function */main()

{

char s[100],c[100];

static int i,len,j;

clrscr();


gets(s);

len=strlen(s);

for(i=len-1;i>=0;i--)

{

c[j++]=s[i];}

printf("Length of the string=%s",c);

getch();

}

o/p:

Enter string:this is c programming

Length of the string=gnimmargorp c si siht
http://www.yellowpen.co.in/c_notes/c_programming/strings/strlen.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strlen.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strrev.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcpy.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcpy.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcat.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcmp.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strupr.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strlwr.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strlwr.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strlen.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strrev.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcpy.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcat.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strcmp.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strupr.htmlhttp://www.yellowpen.co.in/c_notes/c_programming/strings/strlwr.html


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76. /*String Copy Without Using Library Function */

main()

{

char s[100],c[100];

static int i,len;

clrscr();


gets(s);

for(i=0;s[i]!='/0';i++)

{

c[i]=s[i];

}

c[i]='/0';

printf("copied string=%s",c);

getch();

}

o/p:

Enter string:this is c programmingcopied string=this is c programming

77. /*String Concatenation Without Using Library Function */main()

{

char s[100],s1[100],c[100];

static int i,j;

clrscr();

printf("/nEnter first string:");

gets(s);

printf("/nEnter second string:");

gets(s1);

for(i=0;s[i]!='/0';i++)

c[i]=s[i];

for(j=0;s1[j]!='/0';j++)

c[i++]=s1[j];

c[i]='/0';

printf("string concatenation=%s",c);

getch();

}

o/p:

Enter first string:college

Enter second string:bus

string concatenation=collegebus.

78. /*Program to check whether the given string is palindrome or not*/main()

{

char s[100],c[100];

static int i,j,len,count;

clrscr();


gets(s);


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len=strlen(s);

for(i=len-1;i>=0;i--)

c[j++]=s[i]; /*reversing two strings*/

c[i]='/0';

for(i=0;s[i]!='/0';i++)

{

if(s[i]==c[i]) /*Comparision of two strings*/

count++;

}

if(len==count)

printf("palindrome");

else

printf("Not palindrome");

getch();

}

o/p:

Enter first string:madam

palindrome

Enter first string:college

Not palindrome

79. /*Program to convert given string into uppercase*/

main()

{

char s[100],c[100];

static int i,j,len,count;

clrscr();


gets(s);

for(i=0;s[i]!='/0';i++)

{

c[i]=(s[i]>='a' && s[i]


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gets(s);

for(i=0;s[i]!='/0';i++)

{

c[i]=(s[i]>='A' && s[i]


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{

if(s[i]!=' ')

{

s[i]=s[j++];

}

else

{

s[i]=s[i+1];

s[i]=s[j++];

}

}

s[i]='\0';

printf("\nString after %d characters deletion

from %d position:",n,p);

puts(s);

getch();

}

o/p:

Enter string: This is beatiful world

Enter no.of characters to delete: 4

Enter the position:5string after 4 characters deletion from 5 position:

thisbeatiful world.

83. Sorting Stringsmain()

{

char s[20][100],temp[20];

static int i,j,n;

printf("/nEnter no.of strings:");

scanf("%d",&n);

for(;i


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main()

{

clrscr();

compread();

compwrite();

compadd();

compmul();

getch();

}

compread()

{

printf("\nEnter Complex No1:");

scanf("%d%d",&comp.real,&comp.img);

printf("\nEnter Complex No2:");

scanf("%d%d",&comp1.real,&comp1.img);

}

compwrite()

{

printf("\nFirst Complex Number:");

printf("%di%d\n",comp.real,comp.img);printf("\nSecond Complex Number:");

printf("%di%d\n",comp1.real,comp1.img);

}

compadd()

{

struct complex cadd;

cadd.real=comp.real+comp1.real;

cadd.img=comp.img+comp1.img;

printf("\nAddtion of two complex nos:");

printf("%di%d",cadd.real,cadd.img);

}

compmul()

{

struct complex cmul;

cmul.real=(comp.real*comp1.real)-(comp.img*comp1.img);

cmul.img=(comp.real*comp1.img)+(comp.img*comp1.real);

printf("\nMultiplication of two complex nos:");

printf("%di%d",cmul.real,cmul.img);

}

85. /*Calculating Power Using Functions*/main()

{

int b,p;

long int res;

clrscr();

printf("/nEnter base,power:");scanf("%d%d",&b,&p);

res=power(b,p);

printf("/n%d^%d=%d",b,p,res);

getch();

}

/*power function*/

power(int b,int p)

{

long int i,res=1;


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for(i=1;i=1;i--)

f=f*i;

return f;

}

88. /* Finding LCM of two numbers*/#include

main()


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{

int a,b,l;

clrscr();



l=lcm(a,b);

printf("Lcm=%d",l);

getch();

}

lcm(int a,int b)

{

int i=1;

while(1)

{

if(i%a==0 && i%b==0)

return i;

i++;

}

}

o/p:

Enter nos:35 50Lcm=350

89. /*Finding GCD of two numbers*/#include

main()

{

int a,b,l;

clrscr();



l=gcd(a,b);

printf("GCD=%d",l);

getch();

}

gcd(int a,int b)

{

int c=0;

while(1)

{

c=a%b;

if(c==0)

return b;

a=b;

b=c;

}

}

o/p:

Enter nos:200 800

GCD=200

90. /*Evaluating expression*/#include

#include

main()


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{

int x;

double sum=0;

clrscr();

printf("\nEnter x value:");

scanf("%d",&x);

sum=1-pow(x,2)/fact(2)+pow(x,4)/fact(4)-pow(x,6)/fact(6)

+pow(x,8)/fact(8)-pow(x,10)/fact(10);

printf("%f",sum);

getch();

}

/*fact function*/

fact(int f)

{

long int res=1,i;

for(i=1;i


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printf("\n");

}

}

92. /*Matrices Multiplication Using Functions*/#include

main()

{

int ra,ca,rb,cb;

clrscr();

printf("Enter no.of rows for Matrix A:");

scanf("%d",&ra);

printf("Enter no.of columns:");

scanf("%d",&ca);

printf("Enter no.of rows for Matrix B:");

scanf("%d",&rb);

printf("Enter no.of columns for Matrix B:");

scanf("%d",&cb);

if(ca!=rb)

printf("Matrix Multiplication Not Possible");

else

matmul(ra,ca,rb,cb);getch();

}

/*Matmul() function*/

matmul(ra,ca,rb,cb)

int ra,ca,rb,cb;

{

static int i,j,k,b[20][20],a[20][20],mul[20][20];

printf("Enter Matrix A:");

for(i=0;i


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{

int n,i;

float a[10],res;

clrscr();

printf("/n enter no.of values");

scanf("%d",&n);

printf("/nenter values for array a:");

for(i=0;i


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printf("/nEnter number:");

scanf("%d",&n);

printf("/n%d!=%d",n,fact(n));

getch();

}

int fact(n)

int n;

{

if(n==0 || n==1)

return 1;

else

return (n*fact(n-1));

}

o/p:

Enter number:6

6!=720

96. /*Generating Fibnacci Series Using Recurssion*/main()

{

int n,f,i;clrscr();

printf("/nEnter no.of terms:");

scanf("%d",&n);

for(i=0;i


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int r,f;

r=x-(x/y * y);

if(r==0)

return(y);

else

f=hcf(y,r);

return f;

}

98. /*Addition Of Two Values Using Pointors in C*/

main()

{

int *a,*b,*c;

clrscr();

printf("/nEnter 2 values:");

scanf("%d%d",a,b);

*c=*a+*b;

printf("/nsum=%d",*c);

getch();

}99. /*Comparing Two Values Using Pointors in C*/main()

{

int *a,*b;

clrscr();

printf("/nEnter 2 values:");

scanf("%d%d",a,b);

if(*a>*b)

printf("/n%d is big",*a);

else

printf("/n%d is big",*b);

getch();

}

100. /*program to copy elements of array into another in reverseorder using pointors*/

main()

{

static int a[10],b[10];

int i,n=5,j;

clrscr();

printf("/nenter elements");

for(i=0;i


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enter elements 2 3 5 6 0

Elements in the reverse order

0 6 5 3 2

101. /*program To check if a[0]=a[n-1], a[1]=a[n-2] so on in the array

of elements a[n]*/

main()

{

static int a[10];

int i,n=5;

clrscr();

printf("/nenter elements");

for(i=0;i


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o/p:

enter elements

2

3

6

-6

-3

smallest element in the array-6

103. /*program To Reverse The String Using Pointors*/#include

main()

{

char *s,*c;

static int i=0,j=0,len;

clrscr();


gets(s);

len=strlen(s);

for(i=len-1;i>=0;i--){

*(c+j)=*(s+i);

j++;

}

*(c+j)='/0';

printf("/nReverse string:");

puts(c);

getch();

}

o/p:

Enter string:abc

Reverse string:cba

c programs with solutions-2

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