Pyramid Problem No. 59

 Q.59 Write a C program to print the number character pyramid as:

1
AB
123
ABCD
12345

Solving in C:

#include <stdio.h>
    int main(){
        int row,col,ch_count;
        for(row=1; row<=5; row++){
            for(col=1,ch_count=65; col<=row; col++){
                if(row%2==0) printf("%c",ch_count++);
                else printf("%d",col);
            }
            printf("\n");
        }
        return 0;
    }