Submission #666919

#	Time	Username	Problem	Language	Result	Execution time	Memory
666919		Markomafko972	Boxes with souvenirs (IOI15_boxes)	C++14	100 / 100	585 ms	332968 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
#define X first
#define Y second
#define pb push_back
#define pii pair<int, int>
typedef long long ll;
using namespace std;

const int MOD = 1e9 + 7;
const ll INF = 1e18;
const int OFF = (1 << 20);

ll l[10000005];
ll r[10000005];
vector<int> v;

long long delivery(int n, int k, int d, int p[]) {
    for (int i = 0; i < n; i++) {
    	if (p[i] != 0) v.push_back(p[i]);
	}
	
	for (int i = 0; i < (int)v.size(); i++) {
		if (i < k) l[i] = 2LL*v[i];
		else l[i] = 2LL*v[i]+l[i-k];
	}
	for (int i = (int)v.size()-1; i >= 0; i--) {
		if ((int)v.size() - i <= k) r[i] = 2LL*(d-v[i]);
		else r[i] = 2LL*(d-v[i])+r[i+k];
	}
	
	ll sol = min(r[0], l[(int)v.size()-1]);
    for (int i = 0; i < (int)v.size()-1; i++) {
    	sol = min(sol, l[i]+r[i+1]);
	}
    for (int i = 0; i+k+1 < (int)v.size(); i++) {
    	sol = min(sol, l[i]+r[i+k+1]+d);
	}
	sol = min(sol, l[(int)v.size()-k-1]+d);
    sol = min(sol, r[k]+d);
    
    return sol;
}

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