oj.uz

답안 #156101

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
156101 2019-10-03T10:42:34 Z kostia244 3단 점프 (JOI19_jumps) C++14
19 / 100
 859 ms 412240 KB 
#include<bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define pb push_back
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using vi = vector<ll>;
using vvi = vector<vi>;
const ll mod = 1000000007ll;
ll n, mx[5050][5050], dp[5050][5050];
vi a;

ll getmax(int l, int r) {
	l = max(l, 1);
	r = min(r, (int)n);
	if(l > r) return 0;
	if(mx[l][r]) return mx[l][r];
	if(l == r) return mx[l][r] = a[l];
	return mx[l][r] = max(getmax(l, r-1),  a[r]);
}

ll get(int l, int r) {
	if(r-l<2) return 0;
	if(dp[l][r] != -1) return dp[l][r];
	dp[l][r] = a[l]+a[r]+getmax(l+1, (r+l)/2);
	dp[l][r] = max({dp[l][r], get(l+1, r), get(l, r-1)});
	return dp[l][r];
}

int main() {
	ios::sync_with_stdio(0);
	cout.tie(0);
	cin.tie(0);
	memset(dp, -1, sizeof dp);
	memset(mx, 0, sizeof mx);
	cin >> n;
	a.resize(n+1);
	for(int i = 1; i <= n; i++) cin >> a[i];
	int q, l, r;
	cin >> q;
	while(q--) {
		cin >> l >> r;
		cout << get(l, r) << "\n";
	}
	
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 338 ms 399608 KB Output is correct
2 Correct 336 ms 399712 KB Output is correct
3 Correct 334 ms 399660 KB Output is correct
4 Correct 337 ms 399668 KB Output is correct
5 Correct 361 ms 399636 KB Output is correct
6 Correct 346 ms 399616 KB Output is correct
7 Correct 357 ms 399832 KB Output is correct
8 Correct 341 ms 399736 KB Output is correct
9 Correct 348 ms 399564 KB Output is correct
10 Correct 352 ms 399644 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 338 ms 399608 KB Output is correct
2 Correct 336 ms 399712 KB Output is correct
3 Correct 334 ms 399660 KB Output is correct
4 Correct 337 ms 399668 KB Output is correct
5 Correct 361 ms 399636 KB Output is correct
6 Correct 346 ms 399616 KB Output is correct
7 Correct 357 ms 399832 KB Output is correct
8 Correct 341 ms 399736 KB Output is correct
9 Correct 348 ms 399564 KB Output is correct
10 Correct 352 ms 399644 KB Output is correct
11 Correct 770 ms 409756 KB Output is correct
12 Correct 779 ms 409584 KB Output is correct
13 Correct 754 ms 409600 KB Output is correct
14 Correct 782 ms 409720 KB Output is correct
15 Correct 785 ms 409664 KB Output is correct
16 Correct 757 ms 408840 KB Output is correct
17 Correct 755 ms 409024 KB Output is correct
18 Correct 787 ms 409020 KB Output is correct
19 Correct 765 ms 409524 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 859 ms 412240 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 338 ms 399608 KB Output is correct
2 Correct 336 ms 399712 KB Output is correct
3 Correct 334 ms 399660 KB Output is correct
4 Correct 337 ms 399668 KB Output is correct
5 Correct 361 ms 399636 KB Output is correct
6 Correct 346 ms 399616 KB Output is correct
7 Correct 357 ms 399832 KB Output is correct
8 Correct 341 ms 399736 KB Output is correct
9 Correct 348 ms 399564 KB Output is correct
10 Correct 352 ms 399644 KB Output is correct
11 Correct 770 ms 409756 KB Output is correct
12 Correct 779 ms 409584 KB Output is correct
13 Correct 754 ms 409600 KB Output is correct
14 Correct 782 ms 409720 KB Output is correct
15 Correct 785 ms 409664 KB Output is correct
16 Correct 757 ms 408840 KB Output is correct
17 Correct 755 ms 409024 KB Output is correct
18 Correct 787 ms 409020 KB Output is correct
19 Correct 765 ms 409524 KB Output is correct
20 Incorrect 859 ms 412240 KB Output isn't correct
21 Halted 0 ms 0 KB -