Submission #248720

#	Time	Username	Problem	Language	Result	Execution time	Memory
248720		legend	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1092 ms	3200 KiB

shoes

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

long long count_swaps(std::vector<int> s) {
	long long ans = 0;
	for(int i = 0;i<s.size();i+=2){
      a1:
         /*
          for(int j = 0;j<s.size();j++){
            cout<<s[j]<<" ";
          }
          cout<<endl;
          system("pause");*/
        if(s[i]<0){
            for(int j = i+1;j<s.size();j++){
                if(s[j] == -s[i]){
                    for(int k = j;k>i+1;k--){
                        swap(s[k],s[k-1]);
                        ans++;
                    }
                    break;
                }
            }
        }
        else{
            for(int j = i+1;j<s.size();j++){
                if(s[j]<0){
                    for(int k = j;k>i;k--){
                        swap(s[k],s[k-1]);
                        ans++;
                    }
                    break;
                }
            }
            goto a1;
        }
	}
//	system("pause");
	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i<s.size();i+=2){
                ~^~~~~~~~~
shoes.cpp:16:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j = i+1;j<s.size();j++){
                             ~^~~~~~~~~
shoes.cpp:27:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j = i+1;j<s.size();j++){
                             ~^~~~~~~~~

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