View Compilation Error

0_0_38457916_25337.cpp:30:5: error: 'cin' does not name a type
     cin>>t;
     ^
0_0_38457916_25337.cpp:31:5: error: expected unqualified-id before 'while'
     while(t--)
     ^
0_0_38457916_25337.cpp:37:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_38457916_25337.cpp:38:1: error: expected declaration before '}' token
 }
 ^