Compilare: user.cpp: In function ‘int main()’: user.cpp:7:17: warning: ‘a’ is used uninitialized in this function [-Wuninitialized] for(c=1;c<=a;c++) if(a%c==0&&b%c==0) maxim=c; ^ user.cpp:7:47: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(c=1;c<=a;c++) if(a%c==0&&b%c==0) maxim=c; ^