Submission #431865

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
431865	2021-06-17 16:25:19	JUANDI321	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1022 ms	3948 KiB

shoes

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#include "shoes.h"
#include <vector>
#include <deque>
#include <iostream>
using namespace std;
long long count_swaps(vector<int> s) 
{
  long long count = 0; 
  deque<int> sc(s.size());
  for(int i = 0; i<s.size(); i++)sc[i] = s[i];
  while(!sc.empty())
  {
    int x = sc.front();
    sc.pop_front();
    int pos = 0;
    for(int i = 0; i<sc.size(); i++)
    {
      if(sc[i] == x*-1)
      {
        pos = i;
        break;
      }
    }
    count+=pos+1;
    if(x < 0)count--;
    sc.erase(sc.begin()+pos);
  }
  return count;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  for(int i = 0; i<s.size(); i++)sc[i] = s[i];
      |                 ~^~~~~~~~~
shoes.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for(int i = 0; i<sc.size(); i++)
      |                  ~^~~~~~~~~~

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