View Compilation Error

0_0_24505237_9016.cpp:8:7: error: 'MAX' was not declared in this scope
 int f[MAX];
       ^
0_0_24505237_9016.cpp: In function 'int main()':
0_0_24505237_9016.cpp:16:14: error: 'f' was not declared in this scope
       memset(f,0,sizeof(f));
              ^
0_0_24505237_9016.cpp:35:27: error: 'v' was not declared in this scope
       for(int j = m; j >= v; j--)
                           ^