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#include
#include
#include
#include
#include
using namespace std; int m; int n; bool visited[300005]; stack
s; vector
graph[300005]; vector
rev_graph[300005]; void dfs(int node){ visited[node]=true; for(int i=0; i
cycles; void rev_dfs(int r_node){ visited[r_node]=true; cycles.push_back(r_node); for(int i=0; i
> n; for(int i = 0; i < n; i++) { cin >> cost[i]; } cin >> m; for(int i=0; i
>a>>b; a--; b--; graph[b].push_back(a); rev_graph[a].push_back(b); } memset(visited, false, sizeof visited); for(int i=0; i
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