제출 #474502

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
474502	2021-09-18 14:31:31	Alexandruabcde	Peru (RMI20_peru)	C++14	18 / 100	806 ms	5212 KiB

peru

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#include "peru.h"
#include <iostream>
using namespace std;
constexpr int NMAX = 2500005;
constexpr int MOD = 1e9 + 7;
typedef long long LL;
LL dp[NMAX];
int ans = 0;
int solve(int n, int k, int* v){
    for (int i = 0; i < n; ++ i ) {
        int Max_Effort = v[i];
        dp[i] = 100000000000000000;
        for (int j = i; j > max(0, i-k+1); -- j ) {
            Max_Effort = max(Max_Effort, v[j]);
            dp[i] = min(dp[i], dp[j-1] + 1LL * Max_Effort);
        }
        Max_Effort = max(Max_Effort, v[max(0, i-k+1)]);
        if (i < k) dp[i] = min(dp[i], 1LL * Max_Effort);
        else dp[i] = min(dp[i], dp[i-k] + 1LL * Max_Effort);
    }
    for (int i = 0; i < n; ++ i ) {
        ans = (23LL * ans + dp[i]%MOD) % MOD;
    }
 
 
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