Compilare: main.cpp: In function 'void dfs(int)': main.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:13:25: warning: variable 'ok' set but not used [-Wunused-but-set-variable] int i,vecin,v1,v2,j,ok=0; ^~ main.cpp: In function 'int main()': main.cpp:45:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&n,&s,&k); ^ main.cpp:47:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x[i]); ^ main.cpp:51:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&xx,&y); ^