Compilare: main.cpp: In function 'void bfs(int)': main.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=0;i<lista[elem].size();i++){ | ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:50:18: warning: unused variable 'sol' [-Wunused-variable] 50 | int t,dmax=1,sol; | ^~~ main.cpp: In function 'void reset()': main.cpp:43:15: warning: iteration 21001 invokes undefined behavior [-Waggressive-loop-optimizations] 43 | viz[i]=0; | ~~~~~~^~ main.cpp:42:18: note: within this loop 42 | for(int i=0;i<=21001;i++){ | ~^~~~~~~ main.cpp:43:15: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [84004, 84007] is out of the bounds [0, 84004] of object 'viz' with type 'int [21001]' [-Warray-bounds] 43 | viz[i]=0; | ~~~~~~^~ main.cpp:12:9: note: 'viz' declared here 12 | int n,m,viz[21001],coada[21001]; | ^~~