제출 #992504

#제출 시각아이디문제언어결과실행 시간메모리
992504MuntherCarrotSimurgh (IOI17_simurgh)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> // #include "simurgh.h" using namespace std; #define ll long long #define all(x) x.begin(), x.end() struct dsu{ vector<int> p, sz; dsu(int n){ p.resize(n); iota(all(p), 0); sz.resize(n, 1); } int find(int x){ return x == p[x] ? x : p[x] = find(p[x]); } void merge(int a, int b){ a = find(a); b = find(b); p[b] = a; sz[a] += sz[b]; } int size(){ return *max_element(all(sz)); } }; int count_common_roads(const std::vector<int>& r){ for(int i : r) cout << i << ' '; cout << endl; int x; cin >> x; return x; } vector<int> find_roads(int n, vector<int> u, vector<int> v){ int m = u.size(); vector<int> vec(m); iota(all(vec), 0); while(true){ for(int i = 0; i < m; i++){ swap(vec[i], vec[rand() % m]); } dsu A(n); vector<int> V; for(int i : vec){ if(A.find(v[i]) == A.find(u[i])) continue; A.merge(v[i], u[i]); V.push_back(i); } sort(all(V)); if(count_common_roads(V) == n - 1){ return V; } } } int main(){ ios_base::sync_with_stdio(0); cin.tie(0), cout.tie(0); find_roads(4, {0, 0, 0, 1, 1, 2}, {1, 2, 3, 2, 3, 3}); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccvEW2Mt.o: in function `count_common_roads(std::vector<int, std::allocator<int> > const&)':
grader.cpp:(.text+0x370): multiple definition of `count_common_roads(std::vector<int, std::allocator<int> > const&)'; /tmp/ccmRxk1s.o:simurgh.cpp:(.text+0x380): first defined here
/usr/bin/ld: /tmp/ccvEW2Mt.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccmRxk1s.o:simurgh.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status