oj.uz

Submission #893127

# Submission time Handle Problem Language Result Execution time Memory
893127 2023-12-26T14:32:50 Z LCJLY Hacker (BOI15_hac) C++14
100 / 100
 55 ms 25704 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl; 
#define show4(x,y) for(auto it:x) cout << it << " "; cout << #y << endl;
typedef pair<int,int>pii;
typedef pair<pii,pii>pi2;

void solve(){	
	int n;
	cin >> n;
	int arr[2*n+1];
	for(int x=1;x<=n;x++){
		cin >> arr[x];
		arr[x+n]=arr[x];
	}
	
	int prefix[2*n+1];
	memset(prefix,0,sizeof(prefix));
	for(int x=1;x<=2*n;x++){
		prefix[x]=prefix[x-1]+arr[x];
	}
	
	int k=(n+1)/2;
	
	int ptr=k;
	deque<pii>d;
	int best=0;
	int mini[n];
	for(int x=0;x<n;x++) mini[x]=1e17;
	for(int x=1;x<=2*n;x++){
		while(ptr<=2*n&&ptr<=x+k-1){
			while(!d.empty()&&d.back().first>=prefix[ptr]-prefix[ptr-k]){
				d.pop_back();
			}
			d.push_back({prefix[ptr]-prefix[ptr-k],ptr});
			ptr++;
		}
		
		while(!d.empty()&&d.front().second<x) d.pop_front();
		
		if(!d.empty())mini[x%n]=min(mini[x%n],d.front().first);
	}
	for(int x=0;x<n;x++) best=max(best,mini[x]);
	cout << best;
}

int32_t main(){										
	ios::sync_with_stdio(0);	
	cin.tie(0);
	//freopen("in.txt", "r", stdin);
	int t=1;
	//cin >> t;
	while(t--){
		solve();
	}	
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 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 452 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 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 452 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 1 ms 604 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 9 ms 3496 KB Output is correct
5 Correct 19 ms 8280 KB Output is correct
6 Correct 25 ms 10072 KB Output is correct
7 Correct 30 ms 12124 KB Output is correct
8 Correct 50 ms 19792 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 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 452 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 9 ms 3496 KB Output is correct
36 Correct 19 ms 8280 KB Output is correct
37 Correct 25 ms 10072 KB Output is correct
38 Correct 30 ms 12124 KB Output is correct
39 Correct 50 ms 19792 KB Output is correct
40 Correct 1 ms 860 KB Output is correct
41 Correct 2 ms 1116 KB Output is correct
42 Correct 3 ms 1656 KB Output is correct
43 Correct 21 ms 9052 KB Output is correct
44 Correct 54 ms 22080 KB Output is correct
45 Correct 10 ms 4712 KB Output is correct
46 Correct 31 ms 13396 KB Output is correct
47 Correct 55 ms 21952 KB Output is correct
48 Correct 42 ms 22352 KB Output is correct
49 Correct 45 ms 25684 KB Output is correct
50 Correct 43 ms 25704 KB Output is correct