View Compilation Error

0_0_35930966_12023.cpp:70:5: error: expected initializer before 'ios'
     ios::sync_with_stdio(false);
     ^
0_0_35930966_12023.cpp:71:5: error: 'cin' does not name a type
     cin >> t;
     ^
0_0_35930966_12023.cpp:72:5: error: expected unqualified-id before 'while'
     while(t--){
     ^
0_0_35930966_12023.cpp:79:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_35930966_12023.cpp:80:1: error: expected declaration before '}' token
 }
 ^