View Compilation Error

0_0_32893748_5648.cpp: In function 'int main()':
0_0_32893748_5648.cpp:17:3: error: 'max' was not declared in this scope
   max=-1001;
   ^
0_0_32893748_5648.cpp:24:9: error: 'a' was not declared in this scope
     p = a;
         ^
0_0_32893748_5648.cpp:31:5: error: 'a' was not declared in this scope
     a = m+1;
     ^