View Compilation Error

0_0_38612366_21263.cpp: In function 'int main()':
0_0_38612366_21263.cpp:20:11: error: 'LL' was not declared in this scope
    psum+=(LL)t*t;
           ^~
0_0_38612366_21263.cpp:25:16: error: expected initializer before 'gc'
    long long L gc=gcd(x,y);
                ^~
0_0_38612366_21263.cpp:26:7: error: 'gc' was not declared in this scope
    x/=gc;
       ^~
0_0_38612366_21263.cpp:26:7: note: suggested alternative: 'gcd'
    x/=gc;
       ^~
       gcd
0_0_38612366_21263.cpp:30:2: error: expected '}' at end of input
  }
  ^
0_0_38612366_21263.cpp:8:1: note: to match this '{'
 {
 ^