oj.uz

Submission #1024840

# Submission time Handle Problem Language Result Execution time Memory
1024840 2024-07-16T10:58:32 Z Unforgettablepl Fish 2 (JOI22_fish2) C++17
13 / 100
 4000 ms 9708 KB 
#pragma GCC optimize("Ofast","unroll-loops")
#include <bits/stdc++.h>
using namespace std;
 
// #define int long long
 
const int INF = INT32_MAX;
 
 
int32_t main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	int n;
	cin >> n;
	vector<long long> arr(n+1);
	for(int i=1;i<=n;i++)cin>>arr[i];
	vector<pair<int,int>> connection(n+1);
	vector<int> left(n+1),right(n+1);
	vector<long long> pref(n+2);
	auto solve = [&](int l,int r){
		pref[l-1]=0;
		for(int i=l;i<=r;i++)pref[i]=pref[i-1]+arr[i];
		stack<pair<int,int>> s;
		s.emplace(INF,l-1);
		for(int i=l;i<=r;i++){
			while(s.top().first<=arr[i])s.pop();
			connection[i]=s.top();
			left[i]=s.top().second;
			s.emplace(arr[i],i);
		}
		while(!s.empty())s.pop();
		s.emplace(INF,r+1);
		for(int i=r;i>=l;i--){
			while(s.top().first<=arr[i])s.pop();
			connection[i]=min(s.top(),connection[i]);
			right[i]=s.top().second;
			s.emplace(arr[i],i);
		}
		vector<vector<int>> adj(n+1);
		for(int i=l;i<=r;i++){
			adj[connection[i].second].emplace_back(i);
		}	
		int ans = 0;
		function<void(int,int)> dfs = [&](int x,int threshold){
			if(pref[right[x]-1]-pref[left[x]]<threshold)return;
			ans++;
			for(int&i:adj[x])dfs(i,arr[x]);
		};
		for(int&i:adj[l-1])dfs(i,0);
		return ans;
	};
	int q;
	cin >> q;
	for(int i=1;i<=q;i++){
		int type;cin>>type;
		if(type==1){
			int x,y;cin>>x>>y;
			arr[x]=y;
		} else {
			int l,r;cin>>l>>r;
			cout << solve(l,r) << '\n';
		}
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 5 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 5 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 4 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 9 ms 344 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 13 ms 9504 KB Output is correct
3 Correct 11 ms 8284 KB Output is correct
4 Correct 16 ms 9296 KB Output is correct
5 Correct 12 ms 8540 KB Output is correct
6 Correct 17 ms 8796 KB Output is correct
7 Correct 12 ms 7516 KB Output is correct
8 Correct 16 ms 8796 KB Output is correct
9 Correct 12 ms 7352 KB Output is correct
10 Correct 12 ms 8284 KB Output is correct
11 Correct 10 ms 7184 KB Output is correct
12 Correct 11 ms 8040 KB Output is correct
13 Correct 12 ms 8028 KB Output is correct
14 Correct 13 ms 8028 KB Output is correct
15 Correct 14 ms 8540 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 5 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 5 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 4 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 9 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 13 ms 9504 KB Output is correct
23 Correct 11 ms 8284 KB Output is correct
24 Correct 16 ms 9296 KB Output is correct
25 Correct 12 ms 8540 KB Output is correct
26 Correct 17 ms 8796 KB Output is correct
27 Correct 12 ms 7516 KB Output is correct
28 Correct 16 ms 8796 KB Output is correct
29 Correct 12 ms 7352 KB Output is correct
30 Correct 12 ms 8284 KB Output is correct
31 Correct 10 ms 7184 KB Output is correct
32 Correct 11 ms 8040 KB Output is correct
33 Correct 12 ms 8028 KB Output is correct
34 Correct 13 ms 8028 KB Output is correct
35 Correct 14 ms 8540 KB Output is correct
36 Correct 847 ms 9484 KB Output is correct
37 Correct 1304 ms 8096 KB Output is correct
38 Correct 1450 ms 8352 KB Output is correct
39 Correct 342 ms 9000 KB Output is correct
40 Correct 1505 ms 8244 KB Output is correct
41 Correct 1743 ms 8952 KB Output is correct
42 Correct 2286 ms 8740 KB Output is correct
43 Correct 1463 ms 7460 KB Output is correct
44 Correct 1733 ms 7468 KB Output is correct
45 Correct 768 ms 7968 KB Output is correct
46 Correct 1132 ms 8160 KB Output is correct
47 Correct 1382 ms 7268 KB Output is correct
48 Correct 589 ms 7976 KB Output is correct
49 Correct 1977 ms 7888 KB Output is correct
50 Correct 1036 ms 8240 KB Output is correct
51 Execution timed out 4089 ms 8484 KB Time limit exceeded
52 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 13 ms 9504 KB Output is correct
3 Correct 11 ms 8284 KB Output is correct
4 Correct 16 ms 9296 KB Output is correct
5 Correct 12 ms 8540 KB Output is correct
6 Correct 17 ms 8796 KB Output is correct
7 Correct 12 ms 7516 KB Output is correct
8 Correct 16 ms 8796 KB Output is correct
9 Correct 12 ms 7352 KB Output is correct
10 Correct 12 ms 8284 KB Output is correct
11 Correct 10 ms 7184 KB Output is correct
12 Correct 11 ms 8040 KB Output is correct
13 Correct 12 ms 8028 KB Output is correct
14 Correct 13 ms 8028 KB Output is correct
15 Correct 14 ms 8540 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Execution timed out 4086 ms 8628 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 13 ms 9504 KB Output is correct
3 Correct 11 ms 8284 KB Output is correct
4 Correct 16 ms 9296 KB Output is correct
5 Correct 12 ms 8540 KB Output is correct
6 Correct 17 ms 8796 KB Output is correct
7 Correct 12 ms 7516 KB Output is correct
8 Correct 16 ms 8796 KB Output is correct
9 Correct 12 ms 7352 KB Output is correct
10 Correct 12 ms 8284 KB Output is correct
11 Correct 10 ms 7184 KB Output is correct
12 Correct 11 ms 8040 KB Output is correct
13 Correct 12 ms 8028 KB Output is correct
14 Correct 13 ms 8028 KB Output is correct
15 Correct 14 ms 8540 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Execution timed out 4083 ms 9708 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 5 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 5 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 4 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 9 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 13 ms 9504 KB Output is correct
23 Correct 11 ms 8284 KB Output is correct
24 Correct 16 ms 9296 KB Output is correct
25 Correct 12 ms 8540 KB Output is correct
26 Correct 17 ms 8796 KB Output is correct
27 Correct 12 ms 7516 KB Output is correct
28 Correct 16 ms 8796 KB Output is correct
29 Correct 12 ms 7352 KB Output is correct
30 Correct 12 ms 8284 KB Output is correct
31 Correct 10 ms 7184 KB Output is correct
32 Correct 11 ms 8040 KB Output is correct
33 Correct 12 ms 8028 KB Output is correct
34 Correct 13 ms 8028 KB Output is correct
35 Correct 14 ms 8540 KB Output is correct
36 Correct 847 ms 9484 KB Output is correct
37 Correct 1304 ms 8096 KB Output is correct
38 Correct 1450 ms 8352 KB Output is correct
39 Correct 342 ms 9000 KB Output is correct
40 Correct 1505 ms 8244 KB Output is correct
41 Correct 1743 ms 8952 KB Output is correct
42 Correct 2286 ms 8740 KB Output is correct
43 Correct 1463 ms 7460 KB Output is correct
44 Correct 1733 ms 7468 KB Output is correct
45 Correct 768 ms 7968 KB Output is correct
46 Correct 1132 ms 8160 KB Output is correct
47 Correct 1382 ms 7268 KB Output is correct
48 Correct 589 ms 7976 KB Output is correct
49 Correct 1977 ms 7888 KB Output is correct
50 Correct 1036 ms 8240 KB Output is correct
51 Execution timed out 4089 ms 8484 KB Time limit exceeded
52 Halted 0 ms 0 KB -