Number Triangle Design

Q. Write a C program to design the number triangle pyramid as:

1
121
1231
12341
123451

Ans.

/*c program for number triangle design*/
#include<stdio.h>
int main()
{
 int num,r,c,z;
 printf("Enter No. of rows : ");
 scanf("%d", &num);

 for(r=1; r<=num; r++)
 {
  for(c=1; c<=r; c++)
     printf("%d",c);
  for(z=1; z<r; z++)
  {
     printf("%d",z);
     break;
  }
  printf("\n");
 }
 getch();
 return 0;
}

The output of above program  would be:

Figure: Screen shot for Number Triangle Design C program