oj.uz

답안 #811763

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
811763 2023-08-07T05:44:26 Z vjudge1 3단 점프 (JOI19_jumps) C++14
19 / 100
 520 ms 143156 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
using namespace std ;
const int N = 5e5, NS = 5e3 ;
int n, q, d[N + 1], dp[NS + 1][NS + 1], mx[NS + 1][NS + 1] ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    for(int i = 1 ; i <= n ; i++)
        cin >> d[i] ;
    cin >> q ;
    if(n <= 5000)
    {
        for(int i = 1 ; i <= n ; i++)
            for(int j = i ; j <= n ; j++)
                mx[i][j] = max(mx[i][j - 1], d[j]) ;
        for(int i = 1 ; i <= n - 2 ; i++)
            dp[i][i + 2] = d[i] + d[i + 1] + d[i + 2] ;
        for(int ln = 4 ; ln <= n ; ln++)
            for(int j = 1 ; j <= n - ln + 1 ; j++)
                dp[j][j + ln - 1] = max({dp[j][j + ln - 2], dp[j + 1][j + ln - 1], d[j] + d[j + ln - 1] + mx[j + 1][j + (ln - 1) / 2]}) ;
        while(q--)
        {
            int l, r ;
            cin >> l >> r ;
            cout << dp[l][r] << '\n' ;
        }
        return 0 ;
    }
    if(n <= 100 && q <= 100)
    {
        while(q--)
        {
            int l, r, ans = 0 ;
            cin >> l >> r ;
            for(int b = l + 1 ; b < r ; b++)
                for(int a = l ; a < b ; a++)
                    for(int c = b + (b - a) ; c <= r ; c++)
                        ans = max(ans, d[a] + d[b] + d[c]) ;
            cout << ans << '\n' ;
        }
        return 0 ;
    }
    return 0 ;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 1108 KB Output is correct
3 Correct 1 ms 1108 KB Output is correct
4 Correct 1 ms 1076 KB Output is correct
5 Correct 1 ms 1100 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1076 KB Output is correct
8 Correct 1 ms 1092 KB Output is correct
9 Correct 1 ms 1096 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 1108 KB Output is correct
3 Correct 1 ms 1108 KB Output is correct
4 Correct 1 ms 1076 KB Output is correct
5 Correct 1 ms 1100 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1076 KB Output is correct
8 Correct 1 ms 1092 KB Output is correct
9 Correct 1 ms 1096 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 484 ms 143156 KB Output is correct
12 Correct 483 ms 143060 KB Output is correct
13 Correct 484 ms 143092 KB Output is correct
14 Correct 477 ms 143096 KB Output is correct
15 Correct 454 ms 143096 KB Output is correct
16 Correct 483 ms 142512 KB Output is correct
17 Correct 479 ms 142524 KB Output is correct
18 Correct 481 ms 142420 KB Output is correct
19 Correct 520 ms 143044 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 14 ms 1108 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 1108 KB Output is correct
3 Correct 1 ms 1108 KB Output is correct
4 Correct 1 ms 1076 KB Output is correct
5 Correct 1 ms 1100 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1076 KB Output is correct
8 Correct 1 ms 1092 KB Output is correct
9 Correct 1 ms 1096 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 484 ms 143156 KB Output is correct
12 Correct 483 ms 143060 KB Output is correct
13 Correct 484 ms 143092 KB Output is correct
14 Correct 477 ms 143096 KB Output is correct
15 Correct 454 ms 143096 KB Output is correct
16 Correct 483 ms 142512 KB Output is correct
17 Correct 479 ms 142524 KB Output is correct
18 Correct 481 ms 142420 KB Output is correct
19 Correct 520 ms 143044 KB Output is correct
20 Incorrect 14 ms 1108 KB Output isn't correct
21 Halted 0 ms 0 KB -