Submission #2141448


Source Code Expand

#include <bits/stdc++.h>
using namespace std;

const int N = 200005;
const long long INF = 1e18;

int n, m;
int a[N], x[N];
long long s[N];
long long dp[N];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	for (int i = 1; i <= n - 1; ++i) {
		cin >> a[i];
	}
	cin >> m;
	for (int i = 1; i <= m; ++i) {
		cin >> x[i];
	}
	assert(m == 1);
	
	a[n] = x[1];

	for (int i = 1; i <= n; ++i) dp[i] = -INF;
	for (int i = 1; i <= n; ++i) s[i] = s[i - 1] + a[i];

	dp[n] = a[n - 1] - a[n];
	long long mx = -dp[n] - s[n - 2];
	for (int i = n - 1; i >= 2; --i) {
		dp[i] = max(dp[i], mx + a[i - 1] + s[i - 1]);
		mx = max(mx, -dp[i] - s[i - 2]);
	}

	cout << dp[2] << endl;
}

Submission Info

Submission Time
Task H - Tokaido
User cheater2k
Language C++14 (GCC 5.4.1)
Score 700
Code Size 722 Byte
Status RE
Exec Time 130 ms
Memory 4992 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 700 / 700 0 / 900
Status
AC × 1
RE × 1
AC × 20
AC × 21
RE × 18
Set Name Test Cases
sample sample-01.txt, sample-02.txt
dataset1 sample-01.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt
dataset2 sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, 02-14.txt, 02-15.txt, 02-16.txt, sample-01.txt, sample-02.txt
Case Name Status Exec Time Memory
01-01.txt AC 15 ms 4992 KB
01-02.txt AC 2 ms 2304 KB
01-03.txt AC 2 ms 2304 KB
01-04.txt AC 9 ms 3712 KB
01-05.txt AC 15 ms 4992 KB
01-06.txt AC 15 ms 4992 KB
01-07.txt AC 6 ms 3328 KB
01-08.txt AC 22 ms 4992 KB
01-09.txt AC 15 ms 4992 KB
01-10.txt AC 2 ms 2304 KB
01-11.txt AC 4 ms 2944 KB
01-12.txt AC 15 ms 4864 KB
01-13.txt AC 16 ms 4992 KB
01-14.txt AC 16 ms 4864 KB
01-15.txt AC 16 ms 4992 KB
01-16.txt AC 15 ms 4992 KB
01-17.txt AC 16 ms 4992 KB
01-18.txt AC 15 ms 4992 KB
01-19.txt AC 15 ms 4992 KB
02-01.txt RE 104 ms 2304 KB
02-02.txt RE 128 ms 2944 KB
02-03.txt RE 125 ms 2944 KB
02-04.txt RE 125 ms 2944 KB
02-05.txt RE 114 ms 2304 KB
02-06.txt RE 125 ms 2944 KB
02-07.txt RE 126 ms 2944 KB
02-08.txt RE 114 ms 2304 KB
02-09.txt RE 114 ms 2304 KB
02-10.txt RE 120 ms 2560 KB
02-11.txt RE 126 ms 2944 KB
02-12.txt RE 125 ms 2944 KB
02-13.txt RE 126 ms 2944 KB
02-14.txt RE 130 ms 2944 KB
02-15.txt RE 125 ms 2944 KB
02-16.txt RE 125 ms 2944 KB
sample-01.txt AC 2 ms 2304 KB
sample-02.txt RE 97 ms 2304 KB