View Compilation Error

0_0_31970630_3035.cpp: In function 'int main()':
0_0_31970630_3035.cpp:55:18: error: 'T' was not declared in this scope
     scanf("%d", &T);
                  ^
0_0_31970630_3035.cpp:59:22: error: 'n' was not declared in this scope
         scanf("%d", &n);
                      ^