Submission #235796

#	Time	Username	Problem	Language	Result	Execution time	Memory
235796		AASG	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1099 ms	3200 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s) {
    long long r=0;
	while(s.size()>0){
        for(long l=1;l<s.size();l++){
            if(abs(s[0])==abs(s[l]) && (s[0]>0 && s[l]<0) || (s[0]<0 && s[l]>0)){
                if(s[l]>0)r=r+l-1;
                else r=r+l;
                s.erase(s.begin()+l);
                s.erase(s.begin());
                break;
            }
        }
	}
	return r;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(long l=1;l<s.size();l++){
                      ~^~~~~~~~~
shoes.cpp:8:37: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
             if(abs(s[0])==abs(s[l]) && (s[0]>0 && s[l]<0) || (s[0]<0 && s[l]>0)){
                ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

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