Compilare: user.cpp: In function ‘int solve2(int)’: user.cpp:24:9: warning: variable ‘i’ set but not used [-Wunused-but-set-variable] int i,j,st,dr,mid,nr,k,ok,ka,rez,sol; ^ user.cpp: In function ‘int main()’: user.cpp:48:15: warning: unused variable ‘x’ [-Wunused-variable] int n,caz,x,y,m,t; ^ user.cpp:48:17: warning: unused variable ‘y’ [-Wunused-variable] int n,caz,x,y,m,t; ^ user.cpp: In function ‘int solve2(int)’: user.cpp:24:34: warning: ‘rez’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i,j,st,dr,mid,nr,k,ok,ka,rez,sol; ^