Submission #1168947

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1168947	2025-03-18 08:24:34	mousebeaver	Triple Jump (JOI19_jumps)	C++20	27 / 100	22 ms	5716 KiB

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#define ll long long
#include <bits/stdc++.h>
using namespace std;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    ll n;
    cin>>n;
    vector<ll> a(n);
    for(ll& i : a)
        cin>>i;
    vector<ll> pre = {0}; //Greater than everything after that (index)  
    vector<ll> dp(n, 0); //Greatest usable pair of a, b if dp[i] is c
    for(ll j = 1; j < n; j++)
    {
        ll p = pre.size();
        for(ll i = 0; i < p; i++)
        {
            ll ind = pre[p-i-1];
            ll minc = 2*(j+1) - (ind+1);
            if(minc > n)
                continue;
            dp[minc-1] = max(dp[minc-1], a[j]+a[ind]);
            if(a[ind] >= a[j])
                break;
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 14
• Subtask 3: 27 / 27
• Subtask 4: 0 / 54