Submission #1173844

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173844		ezzzay	Collecting Mushrooms (NOI18_collectmushrooms)	C++20	37 / 100	2096 ms	12120 KiB

mushrooms

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
const int N=3e5+5;
signed main(){
    int n,m,d,k;
    cin>>n>>m>>d>>k;
    vector<vector<char>> a(n+3, vector<char>(m+3));
    vector<vector<int>> cnt(n+3, vector<int>(m+3));
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
        }
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            
            for(int y=1;y<=n;y++){
                for(int x=1;x<=m;x++){
                    if(a[i][j]=='M' and a[y][x]=='S' and max(abs(y-i),abs(x-j))<=d)cnt[i][j]++;
                }
            }
        }
    }
    int p=0;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            if(cnt[i][j]>=k)p++;
        }
    }
    cout<<p;
}

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