Question

How to print N size triangle of zeros with 1 to N numbers in the center in C

Answer 1

#include <stdio.h>

int main(void)
{
    int N = 9;

    for (int i = 1; N > 0; N--, i++) {
        for (int j = 1; j < N; j++)
            printf(" ");
        for (int j = 1; j < i; j++)
            printf("0");

        printf("%d", i % 10);

        for (int j = 1; j < i; j++)
            printf("0");

        printf("\n");
    }

    return 0;
}



/*
run:

        1
       020
      00300
     0004000
    000050000
   00000600000
  0000007000000
 000000080000000
00000000900000000

*/

 

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