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Submission #925687

# Submission time Handle Problem Language Result Execution time Memory
925687 2024-02-12T07:27:12 Z vjudge1 Collecting Mushrooms (NOI18_collectmushrooms) C++17
79 / 100
 2000 ms 26196 KB 
#include<bits/stdc++.h>
using namespace  std;
#define ll long long
#define lld long long double
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(a) a.begin(), a.end()
#define IShowSpeed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
const int N=5e5+100;
const int mod=1e9+7;
const int K=500;
const ll inf=1e18+1337;
const int dx[]={-1, 0, 0, 1};
const int dy[]={0, -1, 1, 0};
vector<ll>h[N];
vector< pair<ll,ll> >v;

int main()
{
	IShowSpeed
	ll n,m,d,k,ans=0;
	cin>>n>>m>>d>>k;

	for(int i=1;i<=n;++i)
		for(int j=0;j<=m;++j)
			h[i].pb(0);

	for(int i=1;i<=n;++i)
	{
		ll sum=0;
		for(int j=1;j<=m;++j)
		{
			char c;
			cin>>c;
			if(c=='S') sum++;
			if(c=='M') v.pb({i,j});
			h[i][j]=sum;
		}
	}

	for(auto p: v)
	{
		ll x=p.F,y=p.S,sum=0;
		ll x1=max(1ll,x-d),x2=min(n,x+d);
		ll y1=min(m,y+d),y2=max(0ll,y-d-1);
		for(int i=x1;i<=x2;i+=5)
		{
			sum+=h[i][y1]-h[i][y2];
			if(i+1<=x2) sum+=h[i+1][y1]-h[i+1][y2];
			if(i+2<=x2) sum+=h[i+2][y1]-h[i+2][y2];
			if(i+3<=x2) sum+=h[i+3][y1]-h[i+3][y2];
			if(i+4<=x2) sum+=h[i+4][y1]-h[i+4][y2];
			if(sum>=k)
			{
				ans++;
				break;
			}
		}
	}
	cout<<ans;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12120 KB Output is correct
2 Correct 3 ms 12376 KB Output is correct
3 Correct 3 ms 12380 KB Output is correct
4 Correct 3 ms 12124 KB Output is correct
5 Correct 3 ms 12120 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12120 KB Output is correct
2 Correct 3 ms 12376 KB Output is correct
3 Correct 3 ms 12380 KB Output is correct
4 Correct 3 ms 12124 KB Output is correct
5 Correct 3 ms 12120 KB Output is correct
6 Correct 3 ms 12124 KB Output is correct
7 Correct 3 ms 12120 KB Output is correct
8 Correct 3 ms 12124 KB Output is correct
9 Correct 3 ms 12124 KB Output is correct
10 Correct 3 ms 12124 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12380 KB Output is correct
2 Correct 3 ms 12124 KB Output is correct
3 Correct 4 ms 12636 KB Output is correct
4 Correct 3 ms 12120 KB Output is correct
5 Correct 4 ms 12380 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 13912 KB Output is correct
2 Correct 7 ms 13916 KB Output is correct
3 Correct 8 ms 14168 KB Output is correct
4 Correct 8 ms 13660 KB Output is correct
5 Correct 8 ms 13916 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23756 KB Output is correct
2 Correct 18 ms 25196 KB Output is correct
3 Correct 18 ms 25684 KB Output is correct
4 Correct 16 ms 23636 KB Output is correct
5 Correct 17 ms 26196 KB Output is correct

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12120 KB Output is correct
2 Correct 3 ms 12376 KB Output is correct
3 Correct 3 ms 12380 KB Output is correct
4 Correct 3 ms 12124 KB Output is correct
5 Correct 3 ms 12120 KB Output is correct
6 Correct 3 ms 12124 KB Output is correct
7 Correct 3 ms 12120 KB Output is correct
8 Correct 3 ms 12124 KB Output is correct
9 Correct 3 ms 12124 KB Output is correct
10 Correct 3 ms 12124 KB Output is correct
11 Correct 3 ms 12380 KB Output is correct
12 Correct 3 ms 12124 KB Output is correct
13 Correct 4 ms 12636 KB Output is correct
14 Correct 3 ms 12120 KB Output is correct
15 Correct 4 ms 12380 KB Output is correct
16 Correct 7 ms 13912 KB Output is correct
17 Correct 7 ms 13916 KB Output is correct
18 Correct 8 ms 14168 KB Output is correct
19 Correct 8 ms 13660 KB Output is correct
20 Correct 8 ms 13916 KB Output is correct
21 Correct 15 ms 23756 KB Output is correct
22 Correct 18 ms 25196 KB Output is correct
23 Correct 18 ms 25684 KB Output is correct
24 Correct 16 ms 23636 KB Output is correct
25 Correct 17 ms 26196 KB Output is correct
26 Execution timed out 2061 ms 20696 KB Time limit exceeded
27 Halted 0 ms 0 KB -