Compilare: main.cpp: In function 'int bfs()': main.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:144:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 144 | for(i=0;i<vec.size();i++) | ~^~~~~~~~~~~ main.cpp: In function 'int bfs()': main.cpp:24:15: warning: iteration 2554 invokes undefined behavior [-Waggressive-loop-optimizations] 24 | par[i]=0; | ~~~~~~^~ main.cpp:22:14: note: within this loop 22 | for(i=1;i<=2652;i++) | ~^~~~~~ main.cpp:24:15: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [10220, 10611] is out of the bounds [0, 10220] of object 'par' with type 'int [2555]' [-Warray-bounds] 24 | par[i]=0; | ~~~~~~^~ main.cpp:17:5: note: 'par' declared here 17 | int par[2555]; | ^~~