Submission #1221883

#	Time	Username	Problem	Language	Result	Execution time	Memory
1221883		anonymous321	Peru (RMI20_peru)	C++20	0 / 100	1098 ms	49220 KiB

peru

#include "peru.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll M = 1e9 + 7;
const ll INF = numeric_limits<ll>::max()/2;

int solve(int n, int k, int* v){
    vector<ll> dp (n+1, INF);
    dp[0] = 0;
    ll sol = 0;
    vector<ll> ve (n, 1);
    for (int i = 1; i < n; i++) {
        ve[i] = (ve[i-1] * 23) % M;
    }

    for (int i = 0; i < n; i++) {
        ll cur = v[i];
        for (int j = i; j >= max(0, i-k+1); j--) {
            cur = max(cur, (ll) v[j]);
            dp[i+1] = min(dp[i+1], dp[j] + cur);
        }
        sol += (ve[n - i - 1] * dp[i+1]) % M;
        sol %= M;
    }
    return sol;
}

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