제출 #574348

#제출 시각아이디문제언어결과실행 시간메모리
574348Trisanu_DasArranging Shoes (IOI19_shoes)C++17
컴파일 에러
0 ms0 KiB
#include "shoes.h" #include<bits/stdc++.h> using namespace std; #define int long long int const int N = 2e5+10; int n, fenwick[N]; queue<int> shoes_l[N], shoes_r[N]; void upd(int pos, int val) { for(int i = pos; i <= n; i+= i&-i) { fenwick[i]+= val; } } int get(int pos) { int val = 0; for(int i = pos; i > 0; i-= i&-i) { val+= fenwick[i]; } return val; } int count_swaps(vector<int> s) { n = s.size(); int ans = 0; for(int i = 1; i <= n; i++) { int temp = s[i-1]; if(temp < 0) { temp *= -1; if(shoes_r[temp].size()){ int pos = shoes_r[temp].front(); shoes_r[temp].pop();ans+= get(i) - get(pos-1);upd(pos,1); } else { shoes_l[temp].push(i); upd(i,1); } } else { if(shoes_l[temp].size()){ int pos = shoes_l[temp].front(); shoes_l[temp].pop();ans+= get(i)-get(pos);upd(pos,1); } else { shoes_r[temp].push(i); upd(i,1); } } } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccTcDQ8R.o: in function `main':
grader.cpp:(.text.startup+0x2a8): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status