Submission #200508

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
200508	2020-02-07T03:04:08 Z	a1_N	Bigger segments (IZhO19_segments)	C++14	0 / 100	5 ms	376 KB

segments

#include <bits/stdc++.h>

#define F first
#define S second

using namespace std;

const int N = 5e5 + 5;

int n,a[N];

long long pref[N];

pair<long long,long long> dp[N];

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
		pref[i] = pref[i - 1] + a[i];
	}
	dp[1] = {1,a[1]};
	for(int i = 2; i <= n; i++){
		dp[i] = {dp[i - 1].F,dp[i - 1].S + a[i]};
		for(int j = i - 1; j >= 1; j--){
			if(pref[i] - pref[j] >= dp[j].S && dp[i].F < dp[j].F + 1){
				dp[i] = {dp[j].F + 1,pref[i] - pref[j]};
			}
		}
	}
	cout << dp[n].F;
	return 0;
}

Subtask #1

0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	248 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Incorrect	5 ms	376 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #2

0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	248 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Incorrect	5 ms	376 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #3

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	248 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Incorrect	5 ms	376 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #4

0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	248 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Incorrect	5 ms	376 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #5

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	248 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Incorrect	5 ms	376 KB	Output isn't correct
10	Halted	0 ms	0 KB	-