제출 #612505

#제출 시각아이디문제언어결과실행 시간메모리
612505MohamedAliSaidane장난감 기차 (IOI17_train)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> //#include "train.h" using namespace std; typedef long long ll; typedef double ld; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pii> vpi; typedef vector<pll> vpl; #define pb push_back #define popb pop_back #define all(x) (x).begin(),(x).end() #define ff first #define ss second const int nax = 5004; const int MOD = 1e9 + 7; std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v); int n, m; vi adj[nax]; int vis[nax]; int A[nax], C[nax], self[nax]; int dfs(int x, int dep = n) { vis[x] = 1; dep = C[x] ? n: dep; if(dep == 0) return A[x] ? 0 : 1; int rep = 0; for(auto e: adj[x]) { if(vis[e]) { if(A[x]) rep = 1; } else { if(A[e] == A[x]) { if(rep == 0 ) rep = dfs(e, dep - 1); } else { if(rep == 0) rep = 1 - dfs(e, dep - 1); } } } vis[x] = 0; return rep; } vi who_wins(vi a, vi r, vi u, vi v) { n = a.size(); m = u.size(); for(int i = 0 ; i < n; i++) { A[i] = a[i]; C[i ] = r[i]; } for(int i = 0 ; i < m; i ++) { adj[u[i]].pb(v[i]); if(u[i] == v[i]) self[i] = 1; } vi ans(n, 0); for(int i = n - 1;i >= 0; i--) { if(a[i]) { if(C[i] == 1 && self[i] == 1) ans[i] = 1; else { ans[i] = 0; for(auto e: adj[i]) if(ans[e] == 1) ans[i] = 1; } } else { if(C[i] == 0 && self[i] == 1) ans[i] = 0; else { ans[i] = 1; for(auto e: adj[i]) if(ans[e] == 0) ans[i]= 0; } } } return ans; } int main() { int n, m; assert(2 == scanf("%d %d", &n, &m)); vector<int> a(n), r(n), u(m), v(m); for(int i = 0; i < n; i++) assert(1 == scanf("%d", &a[i])); for(int i = 0; i < n; i++) assert(1 == scanf("%d", &r[i])); for(int i = 0; i < m; i++) assert(2 == scanf("%d %d", &u[i], &v[i])); vector<int> res = who_wins(a, r, u, v); for(int i = 0; i < (int)res.size(); i++) printf(i ? " %d" : "%d", res[i]); printf("\n"); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccEjMD5l.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccABV2pm.o:train.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status