0_0_33253789_4028.cpp: In function 'int main()': 0_0_33253789_4028.cpp:7:19: error: redeclaration of 'long long int k' long long i,m,k,sum=1; ^ 0_0_33253789_4028.cpp:5:17: note: 'long long int k' previously declared here long long n,k=2009; ^