Compilare: main.cpp: In function 'void tare_conexe(int)': main.cpp:22:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++){ ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:10: warning: statement has no effect [-Wunused-value] for(m;m>0;m--){ ^ main.cpp:63:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<comp[i].size();j++){ ~^~~~~~~~~~~~~~~ main.cpp:51:29: 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:53:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&i,&j); ^