View Compilation Error

0_0_30554092_21044.cpp: In function 'void IsPrime()':
0_0_30554092_21044.cpp:10:23: error: 'MAX' was not declared in this scope
     for(int i = 2;i < MAX;i++)
                       ^
0_0_30554092_21044.cpp: In function 'void solve()':
0_0_30554092_21044.cpp:24:16: error: 'isprime' was not declared in this scope
             if(isprime[j]&&isprime[j-2]&&!isprime[j-1])
                ^