Submission #769972

#	Time	Username	Problem	Language	Result	Execution time	Memory
769972		raysh07	오렌지 출하 (JOI16_ho_t1)	C++17	100 / 100	45 ms	896 KiB

2016_ho_t1

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF (int)1e18
#define f first
#define s second

mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

int n, m, k;
const int N = 2e4 + 69;
int dp[N], a[N];

void Solve() 
{
    cin >> n >> m >> k;
    
    for (int i = 1; i <= n; i++){
        cin >> a[i];
    }
    
    for (int i = 1; i <= n; i++){
        dp[i] = INF;
        
        int mi = INF, mx = 0;
        for (int j = i; j >= 1; j--){
            if (i - j + 1 > m) break;
            mi = min(mi, a[j]);
            mx = max(mx, a[j]);
            
            int cost = k + ((i - j + 1) * (mx - mi));
           // cout << mx << " " << mi << " :cost << " ";
            dp[i] = min(dp[i], dp[j - 1] + cost);
        }
        
     //   cout << dp[i] << "\n";
    }
    
    cout << dp[n] << "\n";
}

int32_t main() 
{
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
  //  cin >> t;
    for(int i = 1; i <= t; i++) 
    {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n"; 
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 50 / 50
• Subtask 3: 30 / 30