Submission #493490

#	Time	Username	Problem	Language	Result	Execution time	Memory
493490		Jeff12345121	Peru (RMI20_peru)	C++17	18 / 100	1086 ms	3540 KiB

peru

#include <bits/stdc++.h>
#define int long long
#define ll int
#include "peru.h"
using namespace std;

const ll nmax = 2005;
const ll P = 1000000007;


ll dp[nmax];
int32_t solve(int32_t N, int32_t K, int32_t* S) {
    for (ll i = 1; i <= N; i++) dp[i] = LLONG_MAX;
    for (ll i = 1; i <= N; i++) {
        ll maxSoFar = -1;
        for (ll j = i - 1; j >= 0 && j >= i - K; j--) {
            maxSoFar = max(maxSoFar, 1LL * S[j]);
            dp[i] = min(dp[i], (dp[j] + maxSoFar));
        }
    }

    int dhs=1, ans=0;
    for(int i=N; i>=1; i--)
    {
        ans+=(dp[i]%P*dhs)%P;
        ans%=P;
        dhs=(dhs*23)%P;
    }
    return ans;
}

• Subtask 1: 18 / 18
• Subtask 2: 0 / 31
• Subtask 3: 0 / 51