View Compilation Error

0_0_17583084_24713.cpp:1:4: error: stray '#' in program
 1. #include<iostream>  
    ^
0_0_17583084_24713.cpp:2:4: error: stray '#' in program
 2. #include<cstdio>  
    ^
0_0_17583084_24713.cpp:3:4: error: stray '#' in program
 3. #include<cstring>  
    ^
0_0_17583084_24713.cpp:4:4: error: stray '#' in program
 4. #include<string>  
    ^
0_0_17583084_24713.cpp:6:4: error: stray '#' in program
 6. #define N 500010  
    ^
0_0_17583084_24713.cpp:1:1: error: expected unqualified-id before numeric constant
 1. #include<iostream>  
 ^
0_0_17583084_24713.cpp:6:1: error: expected unqualified-id before numeric constant
 6. #define N 500010  
 ^
0_0_17583084_24713.cpp:8:1: error: expected unqualified-id before numeric constant
 8. int head, tail;  
 ^
0_0_17583084_24713.cpp:9:1: error: expected unqualified-id before numeric constant
 9.   
 ^