Submission #812154

#	Time	Username	Problem	Language	Result	Execution time	Memory
812154		vjudge1	Triple Jump (JOI19_jumps)	C++14	19 / 100	4041 ms	143948 KiB

jumps

#include<bits/stdc++.h>
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#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 ;
//    }
    return 0 ;
}

Compilation message (stderr)

jumps.cpp:2: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    2 | #pragma comment(linker, "/stack:200000000")
      |

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54