답안 #477145

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
477145	2021-09-30T20:59:30 Z	jesus_coconut	송금 (JOI19_remittance)	C++17	0 / 100	1 ms	308 KB

remittance

#include <bits/stdc++.h>
#define all(a) begin(a), end(a)
#define F first
#define S second
#define pb push_back
using namespace std;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
int const MOD = 1e9 + 7;
int const N = 500009;


void solve() {
  int n;
  cin >> n;
  vector<int> a(n), b(n);
  for (int i = 0; i < n; ++i) cin >> a[i] >> b[i];
  while (true) {
    bool rep = false;
    for (int i = 0; i < n; ++i) {
      if (a[i] > b[i]) {
        int diff = (a[i] - b[i] + 1) / 2;
        a[i] -= 2 * diff;
        a[(i+1) % n] += diff;
        rep = true;
      }
    }
    if ([&]{
      for (int i = 0; i < n; ++i) {
        if (a[i] != b[i]) return false;
      }
      return true;
    }()) {
      cout << "Yes\n";
      return;
    }
    if (!rep) {
      cout << "No\n";
      return;
    }
  }
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);


  solve();
  return 0;
}

Subtask #1

0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	1 ms	308 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	308 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Incorrect	1 ms	204 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #2

0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	1 ms	308 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	308 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Incorrect	1 ms	204 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #3

0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	1 ms	308 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	308 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Incorrect	1 ms	204 KB	Output isn't correct
21	Halted	0 ms	0 KB	-