View Compilation Error

0_0_37210262_7908.cpp:5:1: error: 'LL' does not name a type
 LL mod=1e9+7;
 ^
0_0_37210262_7908.cpp:6:1: error: 'LL' does not name a type
 LL quick_pow(ll a,ll b)
 ^
0_0_37210262_7908.cpp: In function 'int main()':
0_0_37210262_7908.cpp:25:28: error: 'mod' was not declared in this scope
   ans=ans1*(quick_pow(ans2,mod-2))%mod;
                            ^
0_0_37210262_7908.cpp:25:33: error: 'quick_pow' was not declared in this scope
   ans=ans1*(quick_pow(ans2,mod-2))%mod;
                                 ^