View Compilation Error

0_0_13813916_19831.cpp:4:4: error: stray '#' in program
  4 #define MAXN 5843
    ^
0_0_13813916_19831.cpp:2:2: error: expected unqualified-id before numeric constant
  2 using namespace std;
  ^
0_0_13813916_19831.cpp:3:2: error: expected unqualified-id before numeric constant
  3 
  ^
0_0_13813916_19831.cpp:10:1: error: expected unqualified-id before numeric constant
 10 
 ^