Compilare: main.cpp: In function 'int main()': main.cpp:27:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pret>a[i]) ~~~~^~~~~ main.cpp:35:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nrp<k) ~~~^~ main.cpp:13:44: warning: unused variable 'sumamin' [-Wunused-variable] unsigned long long st,dr,pretmaxi,suma,sumamin,catep,nrp,copie,pret,nrpt; ^~~~~~~ main.cpp:13:52: warning: unused variable 'catep' [-Wunused-variable] unsigned long long st,dr,pretmaxi,suma,sumamin,catep,nrp,copie,pret,nrpt; ^~~~~ main.cpp:13:62: warning: unused variable 'copie' [-Wunused-variable] unsigned long long st,dr,pretmaxi,suma,sumamin,catep,nrp,copie,pret,nrpt; ^~~~~ main.cpp:14:15: warning: unused variable 'pp' [-Wunused-variable] int n,k,i,pp; ^~ main.cpp:47:23: warning: 'pretmaxi' may be used uninitialized in this function [-Wmaybe-uninitialized] nrpt=(pretmaxi-a[i])/b[i]+1; ~~~~~~~~~^~~~~~