Pyramid Problem No. 45

 Q. 45 Write a C program to print the following number pyramid or number structure:

            1
          1 2 3
        1 2 3 4 5
      1 2 3 4 5 6 7
    1 2 3 4 5 6 7 8 9

Solving in C:

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