View Compilation Error

0_0_21737199_30295.cpp:40:1: error: missing terminating ' character
 int euler(int n'B
 ^
0_0_21737199_30295.cpp:41:5: error: expected ',' or '...' before 'int'
     int res=n,a=n;
     ^
0_0_21737199_30295.cpp:41:18: error: expected ')' before ';' token
     int res=n,a=n;
                  ^
0_0_21737199_30295.cpp:42:5: error: expected unqualified-id before 'for'
     for(int i=2; i*i<=a; i++)
     ^
0_0_21737199_30295.cpp:42:18: error: 'i' does not name a type
     for(int i=2; i*i<=a; i++)
                  ^
0_0_21737199_30295.cpp:42:26: error: 'i' does not name a type
     for(int i=2; i*i<=a; i++)
                          ^
0_0_21737199_30295.cpp:50:5: error: expected unqualified-id before 'if'
     if(a>1) res=res/a*(a-1);
     ^
0_0_21737199_30295.cpp:51:5: error: expected unqualified-id before 'return'
     return res;
     ^
0_0_21737199_30295.cpp:52:1: error: expected declaration before '}' token
 }
 ^