Submission #764192

#	Time	Username	Problem	Language	Result	Execution time	Memory
764192		SanguineChameleon	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	403 ms	215368 KiB

boxes

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

const long long inf = 1e18L + 20;
const int maxN = 1e7 + 20;
long long dp[maxN];

long long delivery(int N, int K, int L, int A[]) {
	for (int i = 0; i < K; i++) {
		dp[i] = min(min(A[i] * 2, (L - A[0]) * 2), L);
	}
	for (int i = K; i < N - 1; i++) {
		dp[i] =	dp[i - K] + min(min(A[i] * 2, (L - A[i - K + 1]) * 2), L);
	}
	dp[N - 1] = inf;
	for (int j = 1; j <= K; j++) {
		dp[N - 1] =	min(dp[N - 1], dp[N - 1 - j] + min(min(A[N - 1] * 2, (L - A[N - 1 - j + 1]) * 2), L));
	}
	return dp[N - 1];
}

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