Write a program to print square of input number given by user in c

#include
#include
main()
{
int num,square;
char ans='y';
clrscr();
while(ans=='y'||ans=='Y')
{
printf("Enter a number\n");
scanf("%d",&num);
square=num*num;
printf("The square of %d is %d",num,square);
printf("\nDo You wish to enter another number (y for yes):");
fflush(stdin);
scanf("%c",&ans);
}
getch();
}


OUTPUT

Enter a number : 7
The square of 7 is 49
Do You wish to enter another number (y for yes):

Write a program to print sum of 1,2,…,10 number with while loop in c

#include
#include
main()
{
int i;
int sum=0;
clrscr();
i=1;
while(i<=10)
{
sum=sum+i;
i++;
}
printf("\n The sum of numbers from 1 to 10 is:%d",sum);
getch();
}


OUTPUT

The sum of numbers from 1 to 10 is : 55

Write a program to print this series:-1 3 5 7 9 11 13 15 17 19 21 23 25 ………… 99 with while loop in c

#include
#include
main()
{
int i=1;
clrscr();
while(i<=100)
{
printf("%d\t",i);
i=i+2;
}
getch();
}

OUTPUT

1 3 5 7 9 11 13 15 17 19 21 23 25 ………… 99

Write a program to print a back triangle in c

#include
#include
main()
{
int n,i,j;
clrscr();
printf("Enter The Number:");
scanf("%d",&n);
for(i=n+1;i>0;i--)
{
for(j=0;j {
printf("*");
}
printf("\n");
}
getch();
}

OUTPUT:-
Enter The Number: 5
*****
****
***
**
*

Write a program to print a triangle with for loop in c

#include
#include
void main()
{
int i,j;
clrscr();
for(i=0;i<=10;i++)
{
for(j=0;j {
printf("*");
}
printf("\n");
}
getch();
}

OUTPUT
*
**
***
****
*****

a program to print a triangle given value by user in c

#include
#include
main()
{
int i,j,k,l,n;
clrscr();
printf("Enter any value");
scanf("%d",&n);
for(i=0;i<=n;i++)
{
for(j=1;j<=n-i;j++)
{
printf(" ");
}
for(k=1;k<=i;k++)
{
printf("*");
}
for(l=1;l {
printf("*");
}
printf("\n");
}
getch();
}


OUTPUT


Enter any value: 5


*
***
*****
*******
*********