View Compilation Error

0_0_25728152_24485.cpp:9:1: error: 'LL' does not name a type
 LL n,k,a,b,ans,mod;
 ^
0_0_25728152_24485.cpp:10:1: error: 'LL' does not name a type
 LL quick(LL a,LL b){
 ^
0_0_25728152_24485.cpp: In function 'int main()':
0_0_25728152_24485.cpp:22:27: error: 'n' was not declared in this scope
  while(~scanf("%lld%lld",&n,&k)){
                           ^
0_0_25728152_24485.cpp:22:30: error: 'k' was not declared in this scope
  while(~scanf("%lld%lld",&n,&k)){
                              ^
0_0_25728152_24485.cpp:26:3: error: 'mod' was not declared in this scope
   mod=k*250;
   ^
0_0_25728152_24485.cpp:27:3: error: 'a' was not declared in this scope
   a=quick(2,3*n+1);
   ^
0_0_25728152_24485.cpp:27:18: error: 'quick' was not declared in this scope
   a=quick(2,3*n+1);
                  ^
0_0_25728152_24485.cpp:28:3: error: 'b' was not declared in this scope
   b=quick(251,n+1);//mod取250*k，目的是先要保留250这个因子，放在取余后再除
   ^
0_0_25728152_24485.cpp:30:3: error: 'ans' was not declared in this scope
   ans=(a*b)%(250*k);
   ^