Compilare: user.cpp: In function ‘int DateDifferenceInDays(int, int, int, int)’: user.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int PalindromicNumbersBetweenTwoTimes(int, int, int, int, int, int, int, int, int, int)’: user.cpp:80:12: warning: unused variable ‘nc1’ [-Wunused-variable] int n1,n2,nc1,nc2,x,p1,p2,l,r,mid,ans=0; ^ user.cpp:80:16: warning: unused variable ‘nc2’ [-Wunused-variable] int n1,n2,nc1,nc2,x,p1,p2,l,r,mid,ans=0; ^ user.cpp:80:20: warning: unused variable ‘x’ [-Wunused-variable] int n1,n2,nc1,nc2,x,p1,p2,l,r,mid,ans=0; ^ user.cpp: In function ‘int main()’: user.cpp:117:8: warning: unused variable ‘i’ [-Wunused-variable] int K,i,ans,mn1,mn2,d1,d2,h1,h2,m1,m2,s1,s2; ^