Submission #757332

#	Time	Username	Problem	Language	Result	Execution time	Memory
757332		dxz05	Tracks in the Snow (BOI13_tracks)	C++17	2.19 / 100	332 ms	15904 KiB

tracks

#pragma GCC optimize("Ofast,O3,unroll-loops")
#pragma GCC target("avx2")

#include <bits/stdc++.h>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)
#define MP make_pair
//#define endl '\n'

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

typedef long long ll;
const int MOD = 1e9 + 7;
const int N = 1e5 + 3e2;

void solve(){
    int n, m;
    cin >> n >> m;

    bool fox = false, rabbit = false;
    for (int i = 0; i < n; i++){
        for (int j = 0; j < m; j++){
            char c;
            cin >> c;
            fox |= c == 'F';
            rabbit |= c == 'R';
        }
    }

    cout << fox + rabbit << endl;

}

int main(){
    clock_t startTime = clock();
    ios_base::sync_with_stdio(false);

#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

    int test_cases = 1;
//    cin >> test_cases;

    for (int test = 1; test <= test_cases; test++){
        // cout << (solve() ? "YES" : "NO") << endl;
        solve();
    }

#ifdef LOCAL
    cerr << "Time: " << int((double) (clock() - startTime) / CLOCKS_PER_SEC * 1000) << " ms" << endl;
#endif

    return 0;
}

Compilation message (stderr)

tracks.cpp: In function 'int main()':
tracks.cpp:40:13: warning: unused variable 'startTime' [-Wunused-variable]
   40 |     clock_t startTime = clock();
      |             ^~~~~~~~~

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