제출 #478347

#제출 시각아이디문제언어결과실행 시간메모리
478347ponytail슈퍼트리 잇기 (IOI20_supertrees)C++17
컴파일 에러
0 ms0 KiB
#include "supertrees.h" #include <bits/stdc++.h> #include <vector> #include <cassert> #include <cstdio> #include <cstdlib> #include <string> using namespace std; int construct(std::vector<std::vector<int>> p); void build(std::vector<std::vector<int>> b); static int n; static std::vector<std::vector<int>> p; static std::vector<std::vector<int>> b; static bool called = false; static void check(bool cond, std::string message) { if (!cond) { printf("%s\n", message.c_str()); fclose(stdout); exit(0); } } int dsu[1000]; int set_of(int u) { if(dsu[u] == u) return u; return dsu[u] = set_of(dsu[u]); } void union_(int u, int v) { dsu[set_of(u)] = set_of(v); } int construct(std::vector<std::vector<int>> p) { int n = p.size(); std::vector<std::vector<int>> answer; for (int i = 0; i < n; i++) { std::vector<int> row; row.resize(n); answer.push_back(row); } for(int i=0; i<n; i++) { dsu[i] = i; } for(int i=0; i<n; i++) { for(int j=0; j<n; j++) { if(p[i][j] == 1 && set_of(i) != set_of(j)) { union_(i, j); answer[i][j] = answer[j][i] = 1; } } } for(int i=0; i<n; i++) { for(int j=0; j<n; j++) { if(p[i][j] == 0 && set_of(i) == set_of(j)) { return 0; } } } build(answer); return 1; } void build(std::vector<std::vector<int>> _b) { check(!called, "build is called more than once"); called = true; check((int)_b.size() == n, "Invalid number of rows in b"); for (int i = 0; i < n; i++) { check((int)_b[i].size() == n, "Invalid number of columns in b"); } b = _b; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccuDxUyn.o: in function `build(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)':
grader.cpp:(.text+0x260): multiple definition of `build(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'; /tmp/ccLmJjEl.o:supertrees.cpp:(.text+0x2c0): first defined here
collect2: error: ld returned 1 exit status