View Compilation Error

0_0_34408135_26221.cpp: In function 'int main()':
0_0_34408135_26221.cpp:72:26: error: 'j' was not declared in this scope
                 debug(dp[j]);
                          ^
0_0_34408135_26221.cpp:9:46: note: in definition of macro 'debug'
 #define debug(x) cout<<"["<<VNAME(x)<<" = "<<x<<"]"<<endl;
                                              ^