Compilare: main.cpp: In function 'void dfs(int)': main.cpp:39:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<fq[nod].size();i++){ ~^~~~~~~~~~~~~~~ main.cpp:43:15: 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:57:30: 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:60:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&tip); ^ main.cpp:64:70: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%hd%hd%hd",&upd[nr].x,&upd[nr].y,&upd[nr].z); ^ main.cpp:69:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%hd%hd",&x , &y); ^ main.cpp:73:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%hd",&x); ^