Submission #278661

#	Time	Username	Problem	Language	Result	Execution time	Memory
278661		toonewbie	Robots (IOI13_robots)	C++17	100 / 100	2240 ms	63732 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
typedef pair<int, int> pii;
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
  vector<int> x, y;
  for (int i = 0; i < A; ++i)
    x.pb(X[i]);
  for (int i = 0; i < B; ++i)
    y.pb(Y[i]);
  sort(x.begin(), x.end());
  sort(y.begin(), y.end());
  multiset<pii> a, b;
  for (int i = 0; i < T; ++i) {
    int p = x.end() - upper_bound(x.begin(), x.end(), W[i]),
        q = y.end() - upper_bound(y.begin(), y.end(), S[i]);
    if (p == 0 && q == 0)
      return -1;
    a.insert(pii(p, q));
    b.insert(pii(q, p));
  }
  int cn = 0;
  while (a.size()) {
    ++cn;
    for (int i = 1; i <= A; ++i) {
      auto g = a.lower_bound(pii(i, -233));
      if (g == a.end())
        break;
      pii x = *g;
      a.erase(g);
      b.erase(b.find(pii(x.se, x.fi)));
    }
    for (int i = 1; i <= B; ++i) {
      auto g = b.lower_bound(pii(i, -233));
      if (g == b.end())
        break;
      pii x = *g;
      b.erase(g);
      a.erase(a.find(pii(x.se, x.fi)));
    }
  }
  return cn;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 25 / 25
• Subtask 4: 37 / 37
• Subtask 5: 10 / 10