Compilare: main.cpp: In function 'void dfs(int)': main.cpp:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<v[i].size();j++){ ~^~~~~~~~~~~~ main.cpp:40:30: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,6000000,fin); ^ main.cpp:43:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&m); ^ main.cpp:57:12: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] dfs (x); /// ne hotaram ce noduri eliminam ^