Compilare: main.cpp: In function 'void prim(int)': main.cpp:57:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int i = 1; i <= n; i++) ^~~ main.cpp:59:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g<<s<<endl; ^ main.cpp: In function 'int get_min_node(int)': main.cpp:23:12: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized] return v; ^ main.cpp: In function 'void prim(int)': main.cpp:11:9: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized] int v, i; ^