View Compilation Error

0_0_17022464_28391.cpp:4:1: error: 'usingnamespace' does not name a type
 usingnamespace std;
 ^
0_0_17022464_28391.cpp:11:16: error: expected ')' before '*' token
     S(constchar*str){
                ^
0_0_17022464_28391.cpp:88:1: error: expected '}' at end of input
 }
 ^
0_0_17022464_28391.cpp:10:9: error: expected unqualified-id at end of input
     S(){}
         ^