Compilare: user.cpp: In function ‘void answer(int, int)’: user.cpp:24:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i =1 ; i<= N; i++) ^~~ user.cpp:26:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ dist[x]=0; ^~~~ user.cpp:31:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[z].size(); i++) ~~^~~~~~~~~~~~~