oj.uz

Submission #1006026

# Submission time Handle Problem Language Result Execution time Memory
1006026 2024-06-23T10:23:08 Z kebine Collecting Mushrooms (NOI18_collectmushrooms) C++17
100 / 100
 49 ms 48744 KB 
#include <bits/stdc++.h>
using namespace std;
#define pii pair<ll,ll>
#define REP(i,x,y) for(ll i=x;i<=y;i++)
#define freeopen   freopen("input.txt","r",stdin); freopen("output.txt","w",stdout);
#define mod 1000000000
#define pb push_back
#define mk make_pair
#define ll long long
#define foor(x,vec) for(auto x:vec ){cout<<x<<" ";}
#define fi first
#define se second
#define MAXN 200069
#define lld long double
#define cha ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ffl fflush(stdout)
#define sst string
ll mvx[]={0,0,-1,1};
ll mvy[]={1,-1,0,0};

map<sst,ll> cnt;
ll n,m,s,d;
void solve(){
    cin>>n>>m>>d>>s;
    char c[n+10][m+10];
    ll dp[n+10][m+10];
    REP(i,0,n+3){
        REP(j,0,m+3)dp[i][j]=0;
    }
    REP(i,1,n)REP(j,1,m)cin>>c[i][j];
    REP(i,1,n){
        REP(j,1,m){
            if(c[i][j]=='S'){
                dp[min(i+d,n)+1][min(j+d,m)+1]++;
                dp[max(i-d,(ll)1)][max(j-d,(ll)1)]++;
                dp[max(i-d,(ll)1)][min(j+d,m)+1]--;
                dp[min(i+d,n)+1][max(j-d,(ll)1)]--;
            }
        }
    }
    ll ans=0;
    REP(i,1,n){
        REP(j,1,m){
            dp[i][j]+=dp[i-1][j]+dp[i][j-1]-dp[i-1][j-1];
            if(dp[i][j]>=s && c[i][j]=='M')ans++;
        }
    }
    cout<<ans<<endl;
}

int main(){
    ll tc;
    tc=1;
//    cin>>tc;
    while(tc--){
        solve();
    }
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2240 KB Output is correct
2 Correct 7 ms 2140 KB Output is correct
3 Correct 8 ms 2652 KB Output is correct
4 Correct 7 ms 2140 KB Output is correct
5 Correct 7 ms 2396 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 48732 KB Output is correct
2 Correct 49 ms 48744 KB Output is correct
3 Correct 37 ms 48732 KB Output is correct
4 Correct 36 ms 48732 KB Output is correct
5 Correct 40 ms 48720 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 7 ms 2240 KB Output is correct
17 Correct 7 ms 2140 KB Output is correct
18 Correct 8 ms 2652 KB Output is correct
19 Correct 7 ms 2140 KB Output is correct
20 Correct 7 ms 2396 KB Output is correct
21 Correct 41 ms 48732 KB Output is correct
22 Correct 49 ms 48744 KB Output is correct
23 Correct 37 ms 48732 KB Output is correct
24 Correct 36 ms 48732 KB Output is correct
25 Correct 40 ms 48720 KB Output is correct
26 Correct 18 ms 6748 KB Output is correct
27 Correct 17 ms 5044 KB Output is correct
28 Correct 19 ms 5980 KB Output is correct
29 Correct 16 ms 5720 KB Output is correct
30 Correct 22 ms 5980 KB Output is correct