Submission #910479

#	Time	Username	Problem	Language	Result	Execution time	Memory
910479		ByeWorld	Tracks in the Snow (BOI13_tracks)	C++14	2.19 / 100	96 ms	33896 KiB

tracks

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
#define bupol __builtin_popcount
//#define int long long 
#define ll long long
#define ld long double
#define fi first
#define se second
#define pb push_back
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
using namespace std;
const int MAXN = 2e5+5;
const int MAXK = 205;
const int LOG = 20;
const int MOD = 1e9+7;
const int SQRT = 520;
const int INF = 1e9+10;
typedef pair<ll,ll> pii;
typedef pair<ll,pii> ipii;

int h, w;
string s[4010];

signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> h >> w;
    for(int i=0; i<h; i++){
        cin >> s[i];
    }

    int ans = 0, an = 0; set<char> x; 
    for(int i=0; i<h; i++){
        for(int j=0; j<w; j++){
            if(s[i][j]=='.') continue;
            if(s[i][j] == 'F') ans = 1;
            else if(s[i][j] == 'R') an = 1;
        }
    }
    cout << ans+an << '\n';
}

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