C Program 19

19. Fill upper triangle with 1, lower triangle with -1 and diagonal elements    

      with 0.

 

#include<stdio.h>

int main(){

            int a[10][10],i,j,row_size,col_size;

            clrscr();

            printf("\nEnter the row size:\n");

            scanf("%d",&row_size);

            printf("\nEnter the column size:\n");

            scanf("%d",&col_size);

            printf("\nThe lower diagonal elements of the matrix is\n");

            for(i=0;i<row_size;i++)

            {

                        printf("\n");

                                     for(j=0;j<col_size;j++)

                                     {

                                     if(i>j)

                                                 printf("-1\t");

                                     if(i<j)

                                                 printf("1\t");

                                     if(i==j)

                                                 printf("0\t");

                                     }

            }

            return 0;

}