Compilare: user.cpp: In function ‘long long int bs()’: user.cpp:26:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) if(mij>=a[i]) kk+=(mij-a[i])/b[i]+1; ^ user.cpp: In function ‘int main()’: user.cpp:48:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cost>a[i]) nr=(cost-a[i])/b[i]+1; ^ user.cpp: In function ‘long long int bs()’: user.cpp:33:12: warning: ‘mij2’ may be used uninitialized in this function [-Wmaybe-uninitialized] return mij2; ^