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Submission #696124

# Submission time Handle Problem Language Result Execution time Memory
696124 2023-02-05T15:10:13 Z amirhoseinfar1385 Hacker (BOI15_hac) C++17
100 / 100
 189 ms 7116 KB 
#include<bits/stdc++.h>
using namespace std;
int kaf=(1<<19);
struct segment{
	int seg[(1<<20)];
	segment(){
		for(int i=0;i<(1<<20);i++){
			seg[i]=0;
		}
	}
	void upd(int i,int l,int r,int tl,int tr,int w){
		if(l>r||l>tr||r<tl){
			return ;
		}
		if(l>=tl&&r<=tr){
			seg[i]=max(seg[i],w);
			return ;
		}
		int m=(l+r)>>1;
		upd((i<<1),l,m,tl,tr,w);
		upd((i<<1)^1,m+1,r,tl,tr,w);
		return ;
	}
	int pors(int i){
		if(i==0){
			return 0;
		}
		int d=seg[i];
		d=max(d,pors((i>>1)));
		return d;
	}
};
segment seg;
	int n;


void add(int l,int r,int w){
	if(r>l){
		seg.upd(1,0,kaf-1,0,l-1,w);
		seg.upd(1,0,kaf-1,r+1,n,w);
	}
	else{
		seg.upd(1,0,kaf-1,r+1,l-1,w);
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	vector<int>all(n);
	int alls=0;
	for(int i=0;i<n;i++){
		cin>>all[i];
		alls+=all[i];
	}
	int len=n/2;
	int l=0,r=len-1;
	int suma=0;
	for(int j=0;j<len;j++){
		suma+=all[j];
	}
	add(l,r,suma);
	bool f=0;
	while(l!=0||f==0){
		f=1;
		suma-=all[l];
		l++;
		l%=n;
		r++;
		r%=n;
		suma+=all[r];
		add(l,r,suma);
	}
	int mina=1e9+5;
	for(int i=0;i<n;i++){
		mina=min(mina,seg.pors(kaf+i));
	//	cout<<i<<" "<<mina<<"\n";
	}
	int res=alls-mina;
	cout<<res<<"\n";
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 2 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 2 ms 4412 KB Output is correct
6 Correct 2 ms 4392 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 2 ms 4308 KB Output is correct
10 Correct 2 ms 4308 KB Output is correct
11 Correct 3 ms 4308 KB Output is correct
12 Correct 2 ms 4308 KB Output is correct
13 Correct 2 ms 4308 KB Output is correct
14 Correct 2 ms 4308 KB Output is correct
15 Correct 2 ms 4376 KB Output is correct
16 Correct 2 ms 4308 KB Output is correct
17 Correct 2 ms 4344 KB Output is correct
18 Correct 2 ms 4424 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 2 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 2 ms 4412 KB Output is correct
6 Correct 2 ms 4392 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 2 ms 4308 KB Output is correct
10 Correct 2 ms 4308 KB Output is correct
11 Correct 3 ms 4308 KB Output is correct
12 Correct 2 ms 4308 KB Output is correct
13 Correct 2 ms 4308 KB Output is correct
14 Correct 2 ms 4308 KB Output is correct
15 Correct 2 ms 4376 KB Output is correct
16 Correct 2 ms 4308 KB Output is correct
17 Correct 2 ms 4344 KB Output is correct
18 Correct 2 ms 4424 KB Output is correct
19 Correct 2 ms 4424 KB Output is correct
20 Correct 2 ms 4420 KB Output is correct
21 Correct 2 ms 4424 KB Output is correct
22 Correct 3 ms 4440 KB Output is correct
23 Correct 4 ms 4436 KB Output is correct
24 Correct 4 ms 4452 KB Output is correct
25 Correct 4 ms 4464 KB Output is correct
26 Correct 4 ms 4436 KB Output is correct
27 Correct 2 ms 4308 KB Output is correct
28 Correct 2 ms 4308 KB Output is correct
29 Correct 2 ms 4308 KB Output is correct
30 Correct 4 ms 4436 KB Output is correct
31 Correct 4 ms 4436 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 2 ms 4308 KB Output is correct
3 Correct 4 ms 4564 KB Output is correct
4 Correct 28 ms 4948 KB Output is correct
5 Correct 66 ms 5972 KB Output is correct
6 Correct 84 ms 6212 KB Output is correct
7 Correct 101 ms 6356 KB Output is correct
8 Correct 165 ms 7048 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 2 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 2 ms 4412 KB Output is correct
6 Correct 2 ms 4392 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 2 ms 4308 KB Output is correct
10 Correct 2 ms 4308 KB Output is correct
11 Correct 3 ms 4308 KB Output is correct
12 Correct 2 ms 4308 KB Output is correct
13 Correct 2 ms 4308 KB Output is correct
14 Correct 2 ms 4308 KB Output is correct
15 Correct 2 ms 4376 KB Output is correct
16 Correct 2 ms 4308 KB Output is correct
17 Correct 2 ms 4344 KB Output is correct
18 Correct 2 ms 4424 KB Output is correct
19 Correct 2 ms 4424 KB Output is correct
20 Correct 2 ms 4420 KB Output is correct
21 Correct 2 ms 4424 KB Output is correct
22 Correct 3 ms 4440 KB Output is correct
23 Correct 4 ms 4436 KB Output is correct
24 Correct 4 ms 4452 KB Output is correct
25 Correct 4 ms 4464 KB Output is correct
26 Correct 4 ms 4436 KB Output is correct
27 Correct 2 ms 4308 KB Output is correct
28 Correct 2 ms 4308 KB Output is correct
29 Correct 2 ms 4308 KB Output is correct
30 Correct 4 ms 4436 KB Output is correct
31 Correct 4 ms 4436 KB Output is correct
32 Correct 2 ms 4308 KB Output is correct
33 Correct 2 ms 4308 KB Output is correct
34 Correct 4 ms 4564 KB Output is correct
35 Correct 28 ms 4948 KB Output is correct
36 Correct 66 ms 5972 KB Output is correct
37 Correct 84 ms 6212 KB Output is correct
38 Correct 101 ms 6356 KB Output is correct
39 Correct 165 ms 7048 KB Output is correct
40 Correct 6 ms 4436 KB Output is correct
41 Correct 9 ms 4564 KB Output is correct
42 Correct 12 ms 4676 KB Output is correct
43 Correct 73 ms 5896 KB Output is correct
44 Correct 170 ms 7116 KB Output is correct
45 Correct 34 ms 5076 KB Output is correct
46 Correct 101 ms 6312 KB Output is correct
47 Correct 173 ms 7020 KB Output is correct
48 Correct 189 ms 7116 KB Output is correct
49 Correct 183 ms 6896 KB Output is correct
50 Correct 169 ms 7028 KB Output is correct