답안 #1098745

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1098745	2024-10-09T20:12:33 Z	Turkhuu	Bigger segments (IZhO19_segments)	C++17	0 / 100	1 ms	348 KB

segments

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<int> a(n);
    for (auto &i : a) {
        cin >> i;
    }
    vector<ll> pfs(n + 1);
    vector<pair<int, ll>> dp(n + 1, {0, 0});
    for (int i = 0, j = 0; i < n; i++) {
        pfs[i + 1] = pfs[i] + a[i];
        if (pfs[i + 1] - pfs[j] >= -dp[j].second) {
            int lo = j, hi = i;
            while (lo < hi) {
                int mi = (lo + hi + 1) / 2;
                pfs[i + 1] - pfs[mi] >= -dp[mi].second ? lo = mi : hi = mi - 1;
            }
            dp[i + 1] = {dp[i].first + 1, pfs[lo] - pfs[i + 1]};
            j = i + 1;
        } else {
            dp[i + 1] = dp[i];
            dp[i + 1].second -= a[i];
        }
    }
    cout << dp[n].first;
    return 6/22;
}

Subtask #1

0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	1 ms	348 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #2

0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	1 ms	348 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #3

0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	1 ms	348 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #4

0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	1 ms	348 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #5

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	1 ms	348 KB	Output isn't correct
10	Halted	0 ms	0 KB	-