제출 #766881

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
766881		tamyte	Tracks in the Snow (BOI13_tracks)	C++14	2.19 / 100	168 ms	31752 KiB

tracks

#include<bits/stdc++.h>
using namespace std;
void setIO(string name = "")
{
    cin.tie(0)->sync_with_stdio(0); // see /general/fast-io
    if (name.size())
    {
        freopen((name + ".in").c_str(), "r", stdin); // see /general/input-output
        freopen((name + ".out").c_str(), "w", stdout);
    }
}

void solve() {
    int n, m;
    cin >> n >> m;
    vector<vector<char>> arr(n, vector<char>(m));
    bool fox = false, rabbit = false;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            cin >> arr[i][j];
            fox |= (arr[i][j] == 'F');
            rabbit |= (arr[i][j] == 'R');
        }
    }
    cout << fox + rabbit << "\n";
}


int main () {
    setIO();
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
}

컴파일 시 표준 에러 (stderr) 메시지

tracks.cpp: In function 'void setIO(std::string)':
tracks.cpp:8:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |         freopen((name + ".in").c_str(), "r", stdin); // see /general/input-output
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tracks.cpp:9:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |         freopen((name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 2.1875 / 70