Submission #1174130

#	Time	Username	Problem	Language	Result	Execution time	Memory
1174130		Ciprian	Collecting Mushrooms (NOI18_collectmushrooms)	C++20	60 / 100	2094 ms	6056 KiB

mushrooms

#include <bits/stdc++.h>
using namespace std;
#define int long long 
int d1[4]={0,0,1,-1};
int d2[4]={1,-1,0,0};
int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,m,d,k;
    cin>>n>>m>>d>>k;
    map<pair<int,int>, int>wet;
    vector<pair<int,int>>sprinkler, mush;
    for(int i=1; i<=n; i++){
        for(int j=1; j<=m; j++){
            char x;
            cin>>x;
            if(x=='S')sprinkler.push_back({i,j});
            if(x=='M')mush.push_back({i,j});
        }
    }for(auto e: mush){
        for(auto f: sprinkler){
            if(max(abs(e.first-f.first), abs(e.second-f.second))<=d){
                wet[e]++;
            }
        }
    }
    int cnt=0;
    for(auto e: mush){
        //cout<<wet[e.first][e.second]<<endl;
        if(wet[e]>=k)cnt++;
    }cout<<cnt<<endl;
    
    return 0;
}

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