Submission #1384467
Source Code Expand
#include <iostream> #include <vector> using namespace std; #define rep(i, n) REP(i, 0, n) #define REP(i, a, n) for(int i = a ; i < (int)n ; i++) #define pb push_back #define N_MAX 1000 #define INF -1000000000000; typedef long long ll; struct Edge{ int from, to; ll cost; Edge(int f, int t, ll c) : from(f), to(t), cost(c) {} }; int n, m; vector<Edge> edges; ll d[N_MAX+1]; bool bellman_ford(){ rep(i, N_MAX+1) d[i] =-INF; d[0] = 0; rep(i, 2*n+1){ for(auto &edge:edges){ if(d[edge.from] != INF && d[edge.to] < d[edge.from] + edge.cost){ d[edge.to] = d[edge.from] + edge.cost; if(i == n-1) return true; } } } return false; } signed main(){ int f, t; ll c; cin >> n >> m; rep(i, m){ cin >> f >> t >> c; f--; t--; edges.emplace_back(f, t, c); } if(bellman_ford()){ cout << "inf" << endl; }else{ cout << d[n-1] << endl; } }
Submission Info
Submission Time | |
---|---|
Task | D - Score Attack |
User | bath_poo_ |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 978 Byte |
Status | CE |
Compile Error
./Main.cpp: In function ‘bool bellman_ford()’: ./Main.cpp:12:27: error: expected ‘)’ before ‘;’ token #define INF -1000000000000; ^ ./Main.cpp:31:26: note: in expansion of macro ‘INF’ if(d[edge.from] != INF && d[edge.to] < d[edge.from] + edge.cost){ ^ ./Main.cpp:31:34: error: expected ‘;’ before ‘[’ token if(d[edge.from] != INF && d[edge.to] < d[edge.from] + edge.cost){ ^ ./Main.cpp:31:33: error: label ‘d’ used but not defined if(d[edge.from] != INF && d[edge.to] < d[edge.from] + edge.cost){ ^