View Compilation Error

0_0_27481459_21145.cpp: In function 'int main()':
0_0_27481459_21145.cpp:6:5: error: expected initializer before 'int'
     int i,T;
     ^
0_0_27481459_21145.cpp:7:5: error: 'a' was not declared in this scope
     a[1]=1;
     ^
0_0_27481459_21145.cpp:10:9: error: 'i' was not declared in this scope
     for(i=3; i<=30; i++)
         ^
0_0_27481459_21145.cpp:12:10: error: 'T' was not declared in this scope
     cin>>T;
          ^