Compilare: main.cpp: In function 'int bfs()': main.cpp:36:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:102:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[100].size();i++) ~^~~~~~~~~~~~~~ main.cpp:101:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(bfs()==1) ^~~~~ main.cpp:112:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' memset(viz,0,sizeof(viz)); ^~~~~~ main.cpp: In function 'int bfs()': main.cpp:28:16: warning: iteration 105 invokes undefined behavior [-Waggressive-loop-optimizations] tata[i]=-1; ~~~~~~~^~~ main.cpp:26:18: note: within this loop for(int i=0;i<=105;i++) ~^~~~~