Submission #1797476
Source Code Expand
#pragma region include #include <iostream> #include <iomanip> #include <stdio.h> #include <sstream> #include <algorithm> #include <iterator> #include <cmath> #include <complex> #include <string> #include <cstring> #include <vector> #include <tuple> #include <bitset> #include <queue> #include <complex> #include <set> #include <map> #include <stack> #include <list> #include <fstream> #include <random> //#include <time.h> #include <ctime> #pragma endregion //#include ///////// #define REP(i, x, n) for(int i = x; i < n; ++i) #define rep(i,n) REP(i,0,n) #define ALL(X) X.begin(), X.end() ///////// #pragma region typedef typedef long long LL; typedef long double LD; typedef unsigned long long ULL; typedef std::pair<LL,LL> PLL;// typedef std::pair<int,int> PII;// #pragma endregion //typedef ////定数 const int INF = (int)1e9; const LL MOD = (LL)1e9+7; const LL LINF = (LL)4e18+20; const LD PI = acos(-1.0); const double EPS = 1e-9; ///////// using namespace::std; int N; vector< vector<int> > gra; vector< bool > visit; vector<int> dfs(int v,int dir){ vector<int> ret(3,1); int size = gra[v].size(); vector<int> temp(3); for(int i=0;i<size;++i){ int to = gra[v][i]; int rev = 0; if( to >= N ){ rev = 1; to -= N; } if( visit[to] ){ continue; } temp = dfs( to ); visit[to] = true; ret[2] = max(ret[2],temp[2]); ret[2] = max(ret[2],temp[0]+ret[1]); if( rev ){ ret[2] = max(ret[2],temp[1]+ret[0]); } ret[0] = max(ret[0],temp[0] + 1); if( rev ){ ret[1] = max(ret[1],temp[1] + 1); } } { cout << "[" << v << "]" << endl; cout << ret[0] << "," << ret[1] << "," << ret[2] << endl; } return ret; } void solve(){ return; cin >> N; gra = vector< vector<int> >(N); visit = vector<bool>(N,false); int a,b,t; for(int i=1;i<N;++i){ cin >> a >> b >> t; --a;--b; if( t == 1 ){ gra[a].push_back( b ); //gra[b].push_back( a+N ); } else if( t == 2 ){ gra[a].push_back( b+N ); } } vector<int> res = dfs(0); cout << res[2] -2 << endl; } #pragma region main signed main(void){ std::cin.tie(0); std::ios::sync_with_stdio(false); std::cout << std::fixed;//小数を10進数表示 cout << setprecision(16);//小数点以下の桁数を指定//coutとcerrで別 solve(); } #pragma endregion //main()
Submission Info
Submission Time | |
---|---|
Task | D - Longest Path |
User | akarin55 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 2408 Byte |
Status | CE |
Compile Error
./Main.cpp: In function ‘std::vector<int> dfs(int, int)’: ./Main.cpp:70:18: error: too few arguments to function ‘std::vector<int> dfs(int, int)’ temp = dfs( to ); ^ ./Main.cpp:55:13: note: declared here vector<int> dfs(int v,int dir){ ^ ./Main.cpp: In function ‘void solve()’: ./Main.cpp:110:25: error: too few arguments to function ‘std::vector<int> dfs(int, int)’ vector<int> res = dfs(0); ^ ./Main.cpp:55:13: note: declared here vector<int> dfs(int v,int dir){ ^