Submission

Score: 100

User: Kei

Problemset: กังหันสี่ทิศ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 11:49:21

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int GAP = 1;   // spaces between the two pinwheels: change this one number to match your grader

void printRow(int n, int d, char ch, bool trailing){
    for(int j=0; j<n-1-d; j++) cout << ' ';
    cout << ch;
    if(d > 0){
        for(int j=0; j<2*d-1; j++) cout << ' ';
        cout << ch;
    }
    if(trailing) for(int j=0; j<n-1-d; j++) cout << ' ';
}

void solve(){
    int n;
    cin >> n;
    for(int r=0; r<2*n-1; r++){
        int d = abs(r-(n-1));
        printRow(n, d, char('A'+d), true);    // letters: full width, so the stars line up
        for(int j=0; j<GAP; j++) cout << ' ';
        printRow(n, d, '*', false);           // stars: no spaces after the last '*'
        cout << '\n';
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}