Submission #1222369

#	Time	Username	Problem	Language	Result	Execution time	Memory
1222369		__moin__	Peru (RMI20_peru)	C++20	0 / 100	1094 ms	30220 KiB

peru

#include <bits/stdc++.h>
using namespace std;

#include "peru.h"

#define ll long long

const ll p = 1e9+7;

int solve(int n, int k, int* v){
    vector<ll> dp(n);
    function<ll(int)> get = [&](int idx) {
        if (idx < 0) return 0ll;
        return dp[idx];
    };
    for (int i = 0; i < n; i++) {
        ll curmin = 1e18;
        int runmax = v[i];
        for (int j = i-1; j >= i-k; j--) {
            curmin = min(curmin, ((ll)get(j) + (ll)runmax));
            if (j < 0) break;
            runmax = max(runmax, v[j]);
        }
        dp[i] = curmin;
    }
    ll factor = 1;
    ll res = 0;
    for (int i = n-1; i >= 0; i--) {
        res += (dp[i]*factor) % p;
        res %= p;
        factor *= 23;
        factor %= p;
    }
    return res;
}

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