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View Compilation Error

0_0_39494552_28.cpp:11:1: error: 'vector' does not name a type
   11 | vector<int> g[N];
      | ^~~~~~
0_0_39494552_28.cpp: In function 'int main()':
0_0_39494552_28.cpp:20:13: error: 'g' was not declared in this scope
   20 |             g[j].pb(i);
      |             ^
0_0_39494552_28.cpp:26:19: error: 'g' was not declared in this scope
   26 |         int len = g[i].size();
      |                   ^


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