View Compilation Error

0_0_29132678_18044.cpp: In function 'int main()':
0_0_29132678_18044.cpp:10:23: error: 't' was not declared in this scope
     while(scanf("%d",&t)!=EOF)
                       ^
0_0_29132678_18044.cpp:14:25: error: 'n' was not declared in this scope
             scanf("%d",&n);
                         ^