Submission #169920

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
169920	2019-12-23 09:22:00	whttt	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1070 ms	3192 KiB

shoes

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#include <vector>
#include <iostream>
#include <algorithm>
#define ll long long
 
using namespace std;
 
ll count_swaps(vector<int> S){
    ll sol = 0;
    while(1){
        if(S.size() == 0){
            break;
        }
        for(ll i = 1;;i++){
            if(S[i] == -S[0]){
                sol += i;
                if(S[0] < 0){
                    sol--;
                }
                S.erase(S.begin()+i);
                S.erase(S.begin());
                break;
            }
        }
    }
    return sol;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 20 / 20
• Subtask 6: 0 / 15