View Compilation Error

0_0_18288363_12052.cpp:2:1: error: expected unqualified-id before numeric constant
 04.using namespace std;  
 ^
0_0_18288363_12052.cpp:3:1: error: expected unqualified-id before numeric constant
 05.typedef long long ll;  
 ^
0_0_18288363_12052.cpp:4:1: error: expected unqualified-id before numeric constant
 06.  
 ^
0_0_18288363_12052.cpp:6:1: error: expected unqualified-id before numeric constant
 08.const int MAXL = 20;  
 ^
0_0_18288363_12052.cpp:7:1: error: expected unqualified-id before numeric constant
 09.  
 ^
0_0_18288363_12052.cpp:9:1: error: expected unqualified-id before numeric constant
 11.bool isp[MAXN];  
 ^
0_0_18288363_12052.cpp:10:1: error: expected unqualified-id before numeric constant
 12.int pcnt[MAXN];  
 ^
0_0_18288363_12052.cpp:11:1: error: expected unqualified-id before numeric constant
 13.vector<int> primes;  
 ^
0_0_18288363_12052.cpp:12:1: error: expected unqualified-id before numeric constant
 14.void init()  
 ^