func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxm = 200000 + 5;   const int maxn = 200000 + 5;   struct Edge {     int from, to, w, id;   };   vector<Edge> edges;   vector<int> G[maxn];   int ans[maxm];   int n, m;   int win[maxn], wall[maxn];   inline void solve() {     memset(ans, -1, sizeof ans);     queue<int> Q;     Q.push(1);     while (!Q.empty()) {       int now = Q.front();       Q.pop();       vector<int> tocheck;       for (const int& i : G[now]) {         Edge& e = edges[i];         if (ans[e.id] != -1) continue;         int to;         if (now == e.from)           to = e.to, ans[e.id] = 0;         else           to = e.from, ans[e.id] = 1;         win[to] += e.w;         wall[to] -= e.w;         if (to != n) tocheck.push_back(to);       }       for (const int& nx : tocheck)         if (win[nx] == wall[nx]) Q.push(nx);     }   }   int main() {     scanf( %d%d , &n, &m);     for (int i = 0, a, b, c; i < m; i++) {       scanf( %d%d%d , &a, &b, &c);       edges.push_back((Edge){a, b, c, i});       G[a].push_back((int)edges.size() - 1);       G[b].push_back((int)edges.size() - 1);       wall[a] += c;       wall[b] += c;     }     solve();     for (int i = 0; i < m; i++) printf( %d n , ans[i]);   }   