View Compilation Error

0_0_21737111_12136.cpp:38:1: error: 'int0D' does not name a type
 int0D
 ^
0_0_21737111_12136.cpp:41:1: error: expected initializer before numeric constant
 29
 ^
0_0_21737111_12136.cpp:43:5: error: expected unqualified-id before 'for'
     for(int i=2; i*i<=a; i++)
     ^
0_0_21737111_12136.cpp:43:18: error: 'i' does not name a type
     for(int i=2; i*i<=a; i++)
                  ^
0_0_21737111_12136.cpp:43:26: error: 'i' does not name a type
     for(int i=2; i*i<=a; i++)
                          ^
0_0_21737111_12136.cpp:51:5: error: expected unqualified-id before 'if'
     if(a>1) res=res/a*(a-1);
     ^
0_0_21737111_12136.cpp:52:5: error: expected unqualified-id before 'return'
     return res;
     ^
0_0_21737111_12136.cpp:53:1: error: expected declaration before '}' token
 }
 ^