C Program to Print Pascal Triangle

/*
           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1



*/
#include <stdio.h>
#include<conio.h>
int main()
{
     int rows, value = 1, space, i, j;

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

     for(i=0; i<rows; i++)
     {
          for(space=1; space <= rows-i; space++)
                printf("  ");

          for(j=0; j <= i; j++)
          {
                if (j==0 || i==0)
                     value = 1;
                else
                     value = value*(i-j+1)/j;

                printf("%4d", value);
          }
          printf("\n");
     }
     return 0;
     getch();
}

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