제출 #1076826

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1076826		mickey080929	Soccer Stadium (IOI23_soccer)	C++17	25 / 100	319 ms	55684 KiB

soccer

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

using namespace std;

int dx[] = {1, -1, 0, 0};
int dy[] = {0, 0, 1, -1};

int biggest_stadium(int N, vector<vector<int>> F) {
    vector<vector<int>> vis(N, vector<int>(N, 0));
    queue<pair<int,int>> q;
    for (int i=0; i<N; i++) {
        for (int j=0; j<N; j++) {
            if (F[i][j] == 0) {
                vis[i][j] = 1;
                q.push({i, j});
                break;
            }
        }
        if (!q.empty()) break;
    }
    while (!q.empty()) {
        int x = q.front().first;
        int y = q.front().second;
        q.pop();
        for (int k=0; k<4; k++) {
            int nx = x + dx[k];
            int ny = y + dy[k];
            if (nx < 0 || nx >= N || ny < 0 || ny >= N) continue;
            if (vis[nx][ny]) continue;
            if (F[nx][ny]) continue;
            vis[nx][ny] = 1;
            q.push({nx, ny});
        }
    }
    for (int i=0; i<N; i++) {
        for (int j=0; j<N; j++) {
            if (F[i][j] == 0 && vis[i][j] == 0) {
                return 0;
            }
        }
    }
    int tot = 0;
    bool flag = false;
    int pl = -1, pr = -1;
    vector<pair<int,int>> ran;
    for (int i=0; i<N; i++) {
        int l = -1, r = -1, cnt = 0;
        for (int j=0; j<N; j++) {
            if (F[i][j] == 0) {
                if (l == -1) l = j;
                r = j;
                cnt ++;
            }
        }
        if (cnt == 0) {
            pl = -1; pr = -1;
            continue;
        }
        ran.push_back({l, r});
        if (r - l + 1 != cnt) {
            return 0;
        }
        if (pl != -1) {
            if (!flag) {
                if (l <= pl && pr <= r) {}
                else if (pl <= l && r <= pr) {
                    flag = true;
                }
                else return 0;
            }
            else {
                if (pl <= l && r <= pr) {}
                else return 0;
            }
        }
        pl = l; pr = r;
        tot += cnt;
    }
    sort(ran.begin(), ran.end(), [&](pair<int,int> &u, pair<int,int> &v) {
        return u.second - u.first < v.second - v.first;
    });
    for (int i=0; i+1<ran.size(); i++) {
        if (ran[i+1].first <= ran[i].first && ran[i].second <= ran[i+1].second) {}
        else return 0;
    }
    return tot;
}

컴파일 시 표준 에러 (stderr) 메시지

soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:83:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |     for (int i=0; i+1<ran.size(); i++) {
      |                   ~~~^~~~~~~~~~~

• 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