In this type of program we always find how many column present in a particular row. Because we know that we are always print in VDU horizontally. Here column number is same as row number and the spaces are present at the left side of the character is equal to the (total no of row - current row). It is Left Side Triangle.
#include <stdio.h> int main() { int r,c,n; printf("Enter Total Number of row : "); scanf("%d",&n); for(r=0;r<n;r++) { for(s=0;s<=n-r;s++) { printf(" "); } for(c=0;c<=r;c++) { printf("*"); } printf("\n"); } return 0; }
Enter Total Number of row : 6
* ** *** **** ***** ******