oj.uz

Submission #133227

# Submission time Handle Problem Language Result Execution time Memory
133227 2019-07-20T09:36:25 Z miguel Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 25 ms 7212 KB 
#include<bits/stdc++.h>
using namespace std;
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
//#define int ll
#define sz size()
#define x first
#define y second
#define pi pair <int, int>
#define pii pair <int, pi>
#define vi vector <int>
const ll mod = 998244353;
int n, m, d, k;

int32_t main(){
    ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
    cin>>n>>m>>d>>k;
    int t[n+2][m+2];
    bool ms[n+2][m+2];
    for(int i=1; i<=n; i++) for(int j=0; j<=m; j++) ms[i][j]=0;
    for(int i=0; i<=n; i++) for(int j=0; j<=m; j++) t[i][j]=0;
    for(int i=1; i<=n; i++){
        for(int j=1; j<=m; j++){
            char c;
            cin>>c;
            if(c=='M') ms[i][j]=1;
            else if(c=='S'){
                t[max(i-d, 1)][max(j-d, 1)]++;
                t[min(i+d+1, n+1)][max(j-d, 1)]--;
                t[max(i-d, 1)][min(j+d+1, m+1)]--;
                t[min(i+d+1, n+1)][min(j+d+1, m+1)]++;
            }
        }
    }
    int ans=0;
    for(int i=1; i<=n; i++){
        for(int j=1; j<=m; j++){
            t[i][j]+=t[i-1][j]+t[i][j-1]-t[i-1][j-1];
            //cout<<t[i][j]<<" ";
            if(ms[i][j] && t[i][j]>=k) ans++;
        }
        //cout<<endl;
    }
    cout<<ans;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1528 KB Output is correct
2 Correct 8 ms 1528 KB Output is correct
3 Correct 9 ms 1784 KB Output is correct
4 Correct 8 ms 1528 KB Output is correct
5 Correct 8 ms 1656 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 7160 KB Output is correct
2 Correct 20 ms 6648 KB Output is correct
3 Correct 21 ms 6328 KB Output is correct
4 Correct 25 ms 7212 KB Output is correct
5 Correct 22 ms 7032 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 7 ms 1528 KB Output is correct
17 Correct 8 ms 1528 KB Output is correct
18 Correct 9 ms 1784 KB Output is correct
19 Correct 8 ms 1528 KB Output is correct
20 Correct 8 ms 1656 KB Output is correct
21 Correct 23 ms 7160 KB Output is correct
22 Correct 20 ms 6648 KB Output is correct
23 Correct 21 ms 6328 KB Output is correct
24 Correct 25 ms 7212 KB Output is correct
25 Correct 22 ms 7032 KB Output is correct
26 Correct 19 ms 3420 KB Output is correct
27 Correct 18 ms 3320 KB Output is correct
28 Correct 20 ms 3256 KB Output is correct
29 Correct 19 ms 3320 KB Output is correct
30 Correct 19 ms 3324 KB Output is correct