Submission #1195392

#	Time	Username	Problem	Language	Result	Execution time	Memory
1195392		mannshah1211	Soccer Stadium (IOI23_soccer)	C++20	25 / 100	208 ms	31912 KiB

soccer

#include "soccer.h"
#include <bits/stdc++.h>

using namespace std;

int biggest_stadium(int n, vector<vector<int>> f) {
  vector<pair<int, int>> ranges_r, ranges_c;
  for (int i = 0; i < n; i++) {
    int mx = 0, mn = n, cnt = 0;
    for (int j = 0; j < n; j++) {
      if (f[i][j] == 0) {
        mx = max(mx, j);
        mn = min(mn, j);
        cnt++;
      }
    }
    if (mx - mn + 1 != cnt && cnt != 0) {
      return 0;
    }
    ranges_r.emplace_back(mn, mx);
  }
  sort(ranges_r.begin(), ranges_r.end(), [&](pair<int, int> x, pair<int, int> y) {
    return (x.second - x.first < y.second - y.first);
  });
  for (int i = 0; i < int(ranges_r.size()) - 1; i++) {
    auto [a, b] = ranges_r[i];
    auto [c, d] = ranges_r[i + 1];
    if (a >= c && b <= d) {
      continue;
    }
    if (c >= a && d <= b) {
      continue;
    }
    return 0;
  }
  for (int j = 0; j < n; j++) {
    int mx = 0, mn = n, cnt = 0;
    for (int i = 0; i < n; i++) {
      if (f[i][j] == 0) {
        mx = max(mx, i);
        mn = min(mn, i);
        cnt++;
      }
    }
    if (mx - mn + 1 != cnt && cnt != 0) {
      return 0;
    }
    ranges_c.emplace_back(mn, mx);
  }
  sort(ranges_c.begin(), ranges_c.end(), [&](pair<int, int> x, pair<int, int> y) {
    return (x.second - x.first < y.second - y.first);
  });
  for (int i = 0; i < int(ranges_c.size()) - 1; i++) {
    auto [a, b] = ranges_c[i];
    auto [c, d] = ranges_c[i + 1];
    if (a >= c && b <= d) {
      continue;
    }
    if (c >= a && d <= b) {
      continue;
    }
    return 0;
  }
  int tot = 0;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      tot += (f[i][j] == 0);
    }
  }
  return tot;
}

• Subtask 0: 0 / 0
• Subtask 1: 1.5 / 6
• Subtask 2: 2 / 8
• Subtask 3: 5.5 / 22
• Subtask 4: 4.5 / 18
• Subtask 5: 4 / 16
• Subtask 6: 7.5 / 30