Submission #782588

#	Time	Username	Problem	Language	Result	Execution time	Memory
782588		NothingXD	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	465 ms	201944 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef complex<ld> point;

void debug_out(){cerr << endl;}

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
	cerr << H << ' ';
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "): ", debug_out(__VA_ARGS__)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)

const int maxn = 1e7 + 10;

int n, k, l;
ll part[maxn], rpart[maxn];

ll delivery(int N, int K, int L, int p[]) {

	n = N;
	k = K;
	l = L;

	for (int i = 0; i < n; i++){
		part[i] = min(l, 2 * p[i]);
		if (i >= k) part[i] += part[i-k];
	}

	for (int i = n-1; ~i; i--){
		rpart[i] = min(l, 2 * (l - p[i]));
		if (i + k < n) rpart[i] += rpart[i+k];
	}

	ll ans = min(rpart[0], part[n-1]);
	for (int i = 0; i < n-1; i++){
		ans = min(ans, part[i] + rpart[i+1]);
	}

    return ans;
}

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