Submission #31944

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
31944	2017-09-17 14:42:54	szawinis	Robots (IOI13_robots)	C++14	100 / 100	2866 ms	18692 KiB

robots

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#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
const int MAX = (1e6)+1;
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
  vector<pair<int,int> > toys;
  for(int i = 0; i < T; i++) toys.emplace_back(W[i], S[i]);
  sort(toys.begin(), toys.end());
  sort(X, X+A);
  sort(Y, Y+B);
  auto check = [&] (int lim) {
    priority_queue<pair<int,int> > pq;
    bitset<MAX> mark;
    int j = 0;
    for(int i = 0; i < A; i++) {
      while(j < toys.size() && toys[j].first < X[i]) {
        pq.emplace(toys[j].second, j);
        ++j;
      }
      for(int k = 0; k < lim && !pq.empty(); k++) {
        mark[pq.top().second] = 1;
        pq.pop();
      }
    }
    while(j < toys.size()) pq.emplace(toys[j].second, j), ++j;
    for(int i = B-1; i >= 0; i--) {
      for(int k = 0; k < lim && !pq.empty() && pq.top().first < Y[i]; k++) {
        mark[pq.top().second] = 1;
        pq.pop();
 
 
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Compilation message (stderr)

robots.cpp: In lambda function:
robots.cpp:17:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    while(j < toys.size() && toys[j].first < X[i]) {
            ^
robots.cpp:26:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(j < toys.size()) pq.emplace(toys[j].second, j), ++j;
           ^
robots.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   return mark.count() == T;
                       ^
robots.cpp: In function 'int putaway(int, int, int, int*, int*, int*, int*)':
robots.cpp:37:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l+r >> 1;
              ^

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