oj.uz

답안 #401250

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
401250 2021-05-09T16:59:39 Z my99n 식물 비교 (IOI20_plants) C++14
0 / 100
 4000 ms 336 KB 
#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

int n;
int ans[5010];
int in[5010];
vector<int> g[5010];
vector<int> r;

int dis (int i, int j) {
  if (i == -1e9 or j == -1e9) return -1e9;
  return (j-i+n) % n;
}

void init(int k, vector<int> R) {
  r = R;
  n = r.size();

  int cnt = 0;
  while (cnt < n) {
    queue<int> c;
    for (int i = 0; i < n; i++) {
      if (r[i] == 0) {
        for (int j = 1; j < k; j++) {
          int ind = (i+j+n)%n;
          if (r[ind] == -1) continue;
          g[ind].push_back(i);
          // cerr << ind << " -> " << i << endl;
          in[i]++;
        }
        c.push(i);
        // cerr << "out " << i << endl;
        r[i] = -1;
        cnt++;
      }
    }
    while (!c.empty()) {
      auto t = c.front(); c.pop();
      for (int i = 1; i < k; i++) {
        int ind = (t-i+n) % n;
        // cerr << "- " << ind << endl;
        if (r[ind] != -1) {
          g[ind].push_back(t);
          in[t]++;
          // cerr << ind << " -> " << t << endl;
          r[ind]--;
        }
      }
    }
  }
  queue<pair<int,int>> q;
  for (int i = 0; i < n; i++) {
    if (in[i] == 0) q.push({i, 0}); // smallest
  }
  while (!q.empty()) {
    auto [t, l] = q.front(); q.pop();
    ans[t] = l;
    for (auto x : g[t]) {
      in[x]--;
      if (!in[x]) q.push({x, l+1});
    }
  }
	return;
}

int compare_plants(int x, int y) {
  if (ans[x] < ans[y]) return -1;
  if (ans[x] > ans[y]) return 1;
	return 0;
}

Compilation message

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:57:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   57 |     auto [t, l] = q.front(); q.pop();
      |          ^

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Execution timed out 4062 ms 332 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Execution timed out 4062 ms 332 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -