Submission #424767

#	Time	Username	Problem	Language	Result	Execution time	Memory
424767		ollel	Boxes with souvenirs (IOI15_boxes)	C++14	0 / 100	267 ms	524292 KiB

boxes

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

#define rep(i,a,b) for(int i = a; i < b; i++)
#define pb push_back
#define lso(x) x&(-x)

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;

int n, k, l;
vi p;
vi pos;

ll min(ll a, int b) {return min(a, (ll)b);}

ll kone() {
  ll ans = 0;
  rep(i,0,l) {
    ans += p[i]*2*min(i, l - i);
  }
  return ans;
}

ll kn() {
  ll ans = l;
  rep(i,0,n - 1) {
    ans = min(ans, 2*pos[i] + 2*(l - pos[i + 1]));
  }
  return ans;
}

ll n10() {
  return 0;
}

ll delivery(int N, int K, int L, int positions[]) {
  n = N; k = K; l = L;
  p.resize(l);
  pos.resize(n); rep(i,0,n) pos[i] = positions[i];
  rep(i,0,n) p[positions[i]]++;
  if (k == 1) return kone();
  else if (k == n) return kn();
  else if (n <= 10) return n10();
  return 0;
}

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