Submission #434257

#	Time	Username	Problem	Language	Result	Execution time	Memory
434257		Tangent	Boxes with souvenirs (IOI15_boxes)	C++17	0 / 100	2068 ms	280 KiB

boxes

#include "boxes.h"
#include "bits/stdc++.h"
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;
 
#define ffor(i, a, b) for (ll i = (a); i < (ll)(b); i++)
#define fford(i, a, b) for (ll i = (a); i > (ll)(b); i--)
#define rep(i, n) ffor(i, 0, n)
#define forin(x, a) for (auto &x: a)
#define all(a) a.begin(), a.end()

long long delivery(int N, int K, int L, int p[]) {    
    vii ord(N);
    rep(i, N) {
        ord[i] = i;
    }

    ll res = N * L;
    do {
        ll curr = 0;
        int pos = 0, rem = K;
        rep(i, N) {
            if (2 * abs(pos - p[ord[i]]) >= L) {
                rem = K - 1;
                curr += L - abs(pos - p[ord[i]]);
            } else {
                rem--;
                curr += abs(pos - p[ord[i]]);
            }
            pos = p[ord[i]];
            if (rem == 0) {
                curr += min(pos, L - pos);
                rem = K;
                pos = 0;
            }
        }
        res = min(res, curr + min(pos, L -pos));
    } while (next_permutation(all(ord)));
    return res;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:27:18: warning: conversion from 'll' {aka 'long long int'} to '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} may change value [-Wconversion]
   27 |         ord[i] = i;
      |                  ^

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