View Compilation Error

0_0_31213669_19970.cpp: In function 'int main()':
0_0_31213669_19970.cpp:7:15: error: 'T' was not declared in this scope
  scanf("%d", &T);
               ^
0_0_31213669_19970.cpp:10:16: error: 'n' was not declared in this scope
   scanf("%d", &n);
                ^
0_0_31213669_19970.cpp:13:17: error: 's' was not declared in this scope
    scanf("%d", &s[i]);
                 ^