Compilare: main.cpp: In function 'int bfs()': main.cpp:22:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i=0 ; i<v[nod].size() ; i++ ){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int dfs(int, int)': main.cpp:40:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;start[nod] < v[nod].size() ; start[nod]++){ ~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:84:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&k); ^ main.cpp:92:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&len); ^ main.cpp:94:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^