Q. Write a C program to print the following equilateral triangle number design as:
5
454
34543
2345432
123454321
Ans.
/*c program for equilateral triangle design*/
#include<stdio.h>
int main()
{
int num,r,c,sp,n;
printf("Enter no. of rows : ");
scanf("%d", &num);
for(r=1; r<=num; r++)
{
for(sp=num-r; sp>=1; sp--)
printf(" ");
for(n=num-r+1; n<=num; n++)
printf("%d",n);
for(c=1,n=num-1; c<r; c++,n--)
printf("%d",n);
printf("\n");
}
getch();
return 0;
}
The output of above program would be:
5
454
34543
2345432
123454321
Ans.
/*c program for equilateral triangle design*/
#include<stdio.h>
int main()
{
int num,r,c,sp,n;
printf("Enter no. of rows : ");
scanf("%d", &num);
for(r=1; r<=num; r++)
{
for(sp=num-r; sp>=1; sp--)
printf(" ");
for(n=num-r+1; n<=num; n++)
printf("%d",n);
for(c=1,n=num-1; c<r; c++,n--)
printf("%d",n);
printf("\n");
}
getch();
return 0;
}
The output of above program would be:
Figure: Screen shot for Equilateral Triangle design C program |
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