Compilare: main.cpp: In function 'void DFS(int)': main.cpp:29:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i =0;i<Muchii[nodCurent].size();i++) ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:9: warning: unused variable 'x' [-Wunused-variable] int x,y,i; ^ main.cpp:43:11: warning: unused variable 'y' [-Wunused-variable] int x,y,i; ^ main.cpp: In function 'void read()': main.cpp:18:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ main.cpp:21:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^