제출 #1186153

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1186153		yoruonivamp	Tracks in the Snow (BOI13_tracks)	C++20	2.19 / 100	100 ms	18188 KiB

tracks

// YoruoniVamp - VTUBE
// Pragma Credit to Discord: pxsithexahydride
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,no-stack-protector,inline-small-functions,inline,unsafe-math-optimizations,omit-frame-pointer,inline-functions-called-once")
#include <bits/stdc++.h>
#pragma GCC target("avx2,fma,popcnt,lzcnt,bmi,bmi2,sse4.2,tune=native")
using namespace std;
#define endl '\n'
#define ll long long
#define ld long double
#define ull unsigned ll
#define cint const int
#define cf const float

cint mxA = 1e6+5, MOD = 1e9+7, INF = 0x3f3f3f3f;
cint d4x[4] = {0, 1, 0, -1}, d4y[4] = {1, 0, -1, 0};
cint d8x[8] = {0, 1, 1, 1, 0, -1, -1, -1}, d8y[8] = {1, 1, 0, -1, -1, -1, 0, 1};

void wait(int ms){
    clock_t endwait;
    endwait = clock() + ms;
    while(clock()<endwait){}
}

void solve(){
    int n, m; cin >> n >> m;
    string grid[n];
    set<char> cnt;
    for(int i = 0; i < n; i++) cin >> grid[i];
    for(int i = 0; i < n; i++){
        for(char c: grid[i]) if(c!='.') cnt.insert(c);
    }
    cout << cnt.size();
    return;
}

int main(){
    cin.tie(nullptr)->sync_with_stdio(0);cout.tie(0);
    // freopen("", "r", stdin);
    // freopen("", "w", stdout);
    int t = 1;
    // cin >> t;
    while(t--) solve();
    return 0;
}

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