Compilare: main.cpp: In function 'void read()': main.cpp:16:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 16 | for(int i = 0; i < m; ++i) | ^~~ main.cpp:19:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 19 | g[y].push_back(x); | ^