Submission #491308

#	Time	Username	Problem	Language	Result	Execution time	Memory
491308		Alexandruabcde	Peru (RMI20_peru)	C++14	0 / 100	1 ms	340 KiB

peru

#include "peru.h"
#include <iostream>
#include <deque>
#include <queue>
#include <vector>

using namespace std;

constexpr int NMAX = 2005;
constexpr int BASE = 23;
constexpr int MOD = 1e9 + 7;
typedef long long LL;
constexpr LL INF = 1e18;

LL dp[NMAX];
int Power[NMAX];

int solve(int n, int k, int* v){
    dp[0] = 0;
    for (int i = 1; i <= n; ++ i ) {
        int Max = v[i-1];
        dp[i] = INF;
        for (int j = i-1; j >= max(0, i - k); -- j ) {
            dp[i] = min(dp[i], dp[j] + Max);

            if (j != 0) Max = max(Max, v[j-1]);
        }
    }

    int ans = 0;
    Power[0] = 1;
    for (int i = 1; i <= n; ++ i )
        Power[i] = (1LL * Power[i-1] * 23) % MOD;

    for (int i = 1; i <= n; ++ i )
        ans = (1LL * ans + 1LL * Power[n-i] * dp[i]) % MOD;

    return ans;
}

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