Compilare: main.cpp: In function 'void bfs(int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i=0;i<a[coada[inc]].size();i++){ | ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void reset()': main.cpp:13:16: warning: iteration 21000 invokes undefined behavior [-Waggressive-loop-optimizations] 13 | viz[i] = 0; | ~~~~~~~^~~ main.cpp:12:20: note: within this loop 12 | for(int i = 1;i<=21001;i++){ | ~^~~~~~~ main.cpp:13:16: 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] 13 | viz[i] = 0; | ~~~~~~~^~~ main.cpp:9:18: note: 'viz' declared here 9 | int coada[21001],viz[21001]; | ^~~ In function 'void reset()', inlined from 'int main()' at main.cpp:39:14: main.cpp:13:16: 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] 13 | viz[i] = 0; | ~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:9:18: note: 'viz' declared here 9 | int coada[21001],viz[21001]; | ^~~