제출 #991360

#제출 시각아이디문제언어결과실행 시간메모리
991360amine_arouaRectangles (IOI19_rect)C++17
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; #include <cstdio> #include <cassert> #define Int long long #define fore(i , n) for(int i = 0 ; i<n;i++) #define pb push_back #define forn(i , x , y) for(int i = x ; i >= y; i--) Int swaps(vector<int> a , vector<int> b) { map<int , vector<int>> pos; int m = (int)a.size(); fore(i , m) { pos[a[i]].pb(i); } Tree<int> t; int ans = 0; forn(i , m - 1 , 0) { t.insert(pos[b[i]].back()); ans+=t.order_of_key(pos[b[i]].back()); pos[b[i]].pop_back(); } return ans; } Int count_swaps(vector<int> s) { vector<int> t; for(auto &x : s) { if((int)t.size() % 2 == 0) t.pb(0); else t.pb(1); if(x < 0) x = 0; else x = 1; } return swaps(s , t); } //int main() { // int n; // assert(1 == scanf("%d", &n)); // vector<int> S(2 * n); // for (int i = 0; i < 2 * n; i++) // assert(1 == scanf("%d", &S[i])); // fclose(stdin); // // long long result = count_swaps(S); // // printf("%lld\n", result); // fclose(stdout); // return 0; //}

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/cc56eJHz.o: in function `main':
grader.cpp:(.text.startup+0x6fa): undefined reference to `count_rectangles(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status