Program139.c

/*
PATTERN PRINTING

input : Ro= 4 Col = 4
output:
@
* @
* * @
* * * @

*/

#include<stdio.h>

void Display(int iRow, int iCol)
{
   int i = 0 , j = 0;
   
   if(iRow != iCol)
   {
    printf("Invalid input");
    return;
   }
   
   for(i = 1; i <= iRow; i++)
   {
    for(j = 1; j <= iCol; j++)
    {
        if(i == j)
        {
            printf("@\t");
        }
        else if(i > j)
        {
            printf("*\t");
        }
       
    }
    printf("\n");
    
   }

}
int main()
{
    int iValue1 = 0, iValue2 = 0;

    printf("Enter number of rows: \n");
    scanf("%d" , &iValue1);

    printf("Enter number of columns: \n");
    scanf("%d" , &iValue2);


    Display(iValue1, iValue2);

    return 0;
}