Submission #1285740

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285740		dssfsuper2	Arranging Shoes (IOI19_shoes)	C++20	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"
#include "grader.cpp"
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <bits/stdc++.h>
using namespace __gnu_pbds;
using namespace std;
using pii=pair<int, int>;
#define ordered_set tree<pii, null_type,less<pii>, rb_tree_tag,tree_order_statistics_node_update>
long long count_swaps(vector<int> s) {  
    ordered_set osef;
    int res = 0;
    vector<set<int>> vse(200003);
    for(int i = 0;i<s.size();i++){
        osef.insert({i, s[i]});
        vse[s[i]+100001].insert(i);
    }
    while(!osef.empty()){
        auto top = *(osef.begin());
        osef.erase(osef.begin());
        vse[top.second+100001].erase(top.first);
        auto fir=*(vse[-top.second+100001].begin());
        vse[-top.second+100001].erase(vse[-top.second+100001].begin());
        auto dist = osef.order_of_key({fir, -top.second});
        res+=dist;
        if(top.second>0)res++;
        osef.erase({fir, -top.second});
    }
    return res;
    
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccK6N7uB.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cczWrX3g.o:shoes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status