View Compilation Error

0_0_12108495_18948.cpp:7: error: expected unqualified-id before "while"
0_0_12108495_18948.cpp:7: error: expected `,' or `;' before "while"
0_0_12108495_18948.cpp:18: error: expected unqualified-id before "return"
0_0_12108495_18948.cpp:18: error: expected `,' or `;' before "return"
0_0_12108495_18948.cpp:19: error: expected declaration before '}' token