View Compilation Error

0_0_26174463_8469.cpp: In function 'int main(int, const char**)':
0_0_26174463_8469.cpp:7:6: error: expected unqualified-id before 'this'
  int this, max;
      ^
0_0_26174463_8469.cpp:11:2: error: invalid use of 'this' in non-member function
  this = max = 0;
  ^
0_0_26174463_8469.cpp:11:9: error: 'max' was not declared in this scope
  this = max = 0;
         ^
0_0_26174463_8469.cpp:20:4: error: invalid use of 'this' in non-member function
    this += p[j];
    ^
0_0_26174463_8469.cpp:21:7: error: invalid use of 'this' in non-member function
    if(this > max)
       ^
0_0_26174463_8469.cpp:23:11: error: invalid use of 'this' in non-member function
     max = this;
           ^
0_0_26174463_8469.cpp:27:12: error: invalid use of 'this' in non-member function
    else if(this < 0)
            ^
0_0_26174463_8469.cpp:28:5: error: invalid use of 'this' in non-member function
     this = 0;
     ^