Write a function that outputs a right isosceles triangle of height and width n, so n = 3 would look like

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One possible solution:

#include<stdio.h>

int main(void) {
  int n;
  scanf("%d",&n);
  for(int i=0;i<n;i++) {
    for(int j=0;j<=i;j++)
      putchar(42);
    putchar(10);
  }
  while((n=getchar())!=10);
  getchar();
  return 0;
}