View Compilation Error

0_0_20173603_27584.cpp: In function 'int main()':
0_0_20173603_27584.cpp:6:5: error: 'LL' was not declared in this scope
     LL m,n;
     ^
0_0_20173603_27584.cpp:7:33: error: 'm' was not declared in this scope
     while(~scanf("%I64d %I64d",&m,&n))
                                 ^
0_0_20173603_27584.cpp:7:36: error: 'n' was not declared in this scope
     while(~scanf("%I64d %I64d",&m,&n))
                                    ^
0_0_20173603_27584.cpp:9:12: error: expected ';' before 'ans'
         LL ans = m/2*(m-m/2);
            ^
0_0_20173603_27584.cpp:11:13: error: 'ans' was not declared in this scope
         if( ans <=  n)  puts("T");
             ^