View Compilation Error

0_0_20173669_1848.cpp: In function 'int main()':
0_0_20173669_1848.cpp:2:12: error: 'longlong' was not declared in this scope
 #define LL longlong
            ^
0_0_20173669_1848.cpp:7:5: note: in expansion of macro 'LL'
     LL m,n;
     ^
0_0_20173669_1848.cpp:8:33: error: 'm' was not declared in this scope
     while(~scanf("%I64d %I64d",&m,&n))
                                 ^
0_0_20173669_1848.cpp:8:36: error: 'n' was not declared in this scope
     while(~scanf("%I64d %I64d",&m,&n))
                                    ^
0_0_20173669_1848.cpp:10:12: error: expected ';' before 'ans'
         LL ans = m/2*(m-m/2);
            ^
0_0_20173669_1848.cpp:12:13: error: 'ans' was not declared in this scope
         if( ans <=  n)  puts("T");
             ^