Compilare: main.cpp: In function 'int main()': main.cpp:144:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k=1; k< pereti.size();k++) ~^~~~~~~~~~~~~~~ main.cpp:160:28: warning: 'jmax' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<imax<<" "<<jmax<<" "<<smax<<"\n"; ^~~ main.cpp:160:17: warning: 'imax' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<imax<<" "<<jmax<<" "<<smax<<"\n"; ^~~