Compilare: main.cpp: In function 'void Back(long int, long int)': main.cpp:25:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long j=0;j<Muchii[nodCurent].size();j++) ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void read()': main.cpp:13:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld",&n,&nrp); ^ main.cpp:16:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] long j;fscanf(f,"%ld",&j); ^ main.cpp: In function 'long int FindLca(long int, long int)': main.cpp:68:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'void Rez()': main.cpp:74:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld",&x,&y); ^ main.cpp: In function 'long int FindLca(long int, long int)': main.cpp:63:24: warning: 'tataComun' may be used uninitialized in this function [-Wmaybe-uninitialized] return tataComun; ^~~~~~~~~