Submission #1160685

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1160685	2025-03-02 20:04:04	hyakup	Arranging Shoes (IOI19_shoes)	C++20	100 / 100	196 ms	274024 KiB

shoes

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#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll count_swaps( vector<int> v ) {
  int n = v.size();
  queue<int> fila[2*(n + 1)];
  int cont = 1;
  ll resp = 0;
  vector<int> pos(n);
  for( int i = 0; i < n; i++ ){
    int t = (( v[i] > 0 ) ? 1 : 0 );
    if( fila[2*abs(v[i]) + 1 - t ].empty() ){
      pos[i] = cont;
      cont += 2;
      fila[2*abs(v[i]) + t].push(i);
      if( t == 1 ) resp++;
    }
    else{
      int outro = fila[2*abs(v[i]) + 1 - t].front();
      fila[2*abs(v[i]) + 1 - t].pop();
      pos[i] = pos[outro] + 1;
    }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 15 / 15