Submission #925564

#	Time	Username	Problem	Language	Result	Execution time	Memory
925564		vjudge1	Collecting Mushrooms (NOI18_collectmushrooms)	C++17	19 / 100	6 ms	2652 KiB

mushrooms

// By ObeliX
#include <bits/stdc++.h>
#pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#include <unordered_map>
#include <cstddef>
#include <cassert>
#include <bitset>
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <cmath>
#include <queue>
#include <map>
#include <set>

using namespace std;

const long long N = 1e6 + 5;
const long long MOD = 1e7 + 7;
const long long inf = 1e18;

long long n , m , d , k;
char c[5001][5001];

int main(){
    //freopen( "cinema.in" , "r" , stdin );
    //freopen( "cinema.out" , "w" , stdout );
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m >> d >> k;
    long long cnt1 = 0 , cnt2 = 0;
    for ( int i = 1 ; i <= n ; i++ ) {
        for ( int j = 1 ; j <= m ; j++ ) {
            cin >> c[i][j];
            if ( c[i][j] == 'S' ) {
                cnt1++;
            }
            if ( c[i][j] == 'M' ) {
                cnt2++;
            }
        }
    }
    if ( d == max( n , m ) && cnt1 >= k ) {
        cout << cnt2 ;
    }
    else {
        cout << 0 ;
    }
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 23
• Subtask 5: 0 / 19
• Subtask 6: 0 / 21