제출 #891579

#제출 시각아이디문제언어결과실행 시간메모리
891579ArpArranging Shoes (IOI19_shoes)C++17
컴파일 에러
0 ms0 KiB
#include "shoes.h" #include<bits/stdc++.h> using namespace std; using i64 = long long; i64 count_swaps(vector<int> arr){ int n = arr.size(); map<int,int> mp; vector<int> bit(n + 1); i64 ans = 0; for(int i = 0;i<n;i++){ int e = arr[i]; int ind; if(mp.find(-e) == mp.end()){ ind = i + 1; mp[e] = ind; }else{ ind = mp[-e]; mp.erase(e); mp.erase(-e); ans += i; // implementation skills for(int j = ind;j > 0;j -= (j & -j)){ ans -= bit[j]; } if(e < 0) ans ++; } // adding twice if found both the pair for(;ind <= n;ind += (ind & -ind)){ bit[ind] ++; } } return ans; } int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccczA3Yo.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccK6qlTn.o:shoes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status