Submission #747978

#	Time	Username	Problem	Language	Result	Execution time	Memory
747978		Abrar_Al_Samit	Boxes with souvenirs (IOI15_boxes)	C++17	50 / 100	39 ms	8396 KiB

boxes

#include <bits/stdc++.h>
#include "boxes.h"
using namespace std;
 
const int nax = 1e3 + 3;
const long long INF = 1e18;
 
 
long long dp[nax];
int n, k, L;
int a[nax]; 
int c[nax];
bool bad[nax];
 
int get(int i, int j) {
    if(i==j) return 0;
    return min(a[j]-a[i], c[i]+c[i+1]+a[j]-a[i+1]);
}
long long delivery(int N, int K, int l, int p[]) {
    n = N, k = K, L = l;
    for(int i=1; i<=n; ++i) {
        a[i] = p[i-1];
        c[i] = min(a[i], L-a[i]);
    }
 
    for(int i=1; i<=n+1; ++i) {
        dp[i] = INF;
    }
    dp[1] = c[1];
    
    for(int i=2; i<=n; ++i) {
        for(int j=i-1; j>0 && i-j<=k; --j) {
            dp[i] = min(dp[i], dp[j] + get(j, i-1));
        }
        dp[i] += c[i-1] + c[i];
    }
 

    long long ans = INF;
    for(int i=1; i<=n; ++i) {
        if(i+k-1>=n) {
            ans = min(ans, a[n]-a[i]+dp[i]+c[n]);
        }
    }
    return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30