Compilare: main.cpp: In function 'int main()': main.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pret>a[i]) ~~~~^~~~~ main.cpp:32:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nrp>k) ~~~^~ main.cpp:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pretmaxi>a[i]) ~~~~~~~~^~~~~ 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: variable 'catep' set but not used [-Wunused-but-set-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:50:9: warning: 'pretmaxi' may be used uninitialized in this function [-Wmaybe-uninitialized] if(pretmaxi>a[i]) ^~