sample.cpp

#include<bits/stdc++.h>
#include<unordered_set>
using namespace std;

typedef vector <int> vi;
typedef pair< int ,int > pii;
#define endl "\n"
#define sd(val) scanf("%d",&val)
#define ss(val) scanf("%s",&val)
#define sl(val) scanf("%lld",&val)
#define debug(val) printf("check%d\n",val)
#define all(v) v.begin(),v.end()
#define PB push_back
#define MP make_pair
#define FF first
#define SS second
#define ll long long
#define MOD 1000000007
#define clr(val) memset(val,0,sizeof(val))
#define what_is(x) cerr << #x << " is " << x << endl; 
#define OJ \
    freopen("input.txt", "r", stdin); \
    freopen("output.txt", "w", stdout);
#define spacing << " " 
#define FIO ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);



int main() {
  FIO
  OJ
  int x = 0;
  for(int row = 0; row < 5; row++) {
      for(int col = 0; col < 5; col++) {
        if(col < x) {
          cout << " ";
        } else {
          cout << "*";
        } 
      }
      x++;
    cout << endl;
  }
  return 0;
}