basic-algo-lecture/0x02/solutions/2446.cpp at master · std-freejia/basic-algo-lecture · GitHub

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// Authored by : wogha95
// Co-authored by : -
// http://boj.kr/7026df35c02346969ab865fd2c15ad16
#include <bits/stdc++.h>
using namespace std;

int main(void) {
  ios::sync_with_stdio(0);
  cin.tie(0);

  int N;
  cin >> N;

  for(int i = 0; i < N - 1; i++) {
    for(int j = 0; j < i; j++) cout << ' ';
    for(int j = 0; j < 2 * (N - i) - 1; j++) cout << '*';
    cout << "\n";
  }

  for(int j = 0; j < N - 1; j++) cout << ' ';
  cout << "*\n";

  for(int i = 1; i <= N - 1; i++) {
    for(int j = 1; j <= N - i - 1; j++) cout << ' ';
    for(int j = 1; j <= 2 * i + 1; j++) cout << '*';
    cout << "\n";
  }
}