View Compilation Error

0_0_37984851_6728.cpp: In function 'int main()':
0_0_37984851_6728.cpp:6:10: error: 't' was not declared in this scope
     cin>>t; 
          ^
0_0_37984851_6728.cpp:14:18: error: return-statement with no value, in function returning 'int' [-fpermissive]
                  return;
                  ^