Compilare: user.cpp: In function ‘int main()’: user.cpp:12:19: warning: unused variable ‘j’ [-Wunused-variable] ull n,k,s=0,i,j,x,y,ok,mij,cate,acum; ^ user.cpp:12:21: warning: unused variable ‘x’ [-Wunused-variable] ull n,k,s=0,i,j,x,y,ok,mij,cate,acum; ^ user.cpp:12:23: warning: unused variable ‘y’ [-Wunused-variable] ull n,k,s=0,i,j,x,y,ok,mij,cate,acum; ^ user.cpp:34:5: warning: ‘cate’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(cate<k) ^ user.cpp:33:15: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] cautat=mij; ^