View Compilation Error

0_0_30065429_8083.cpp:18:1: error: 'LL' does not name a type
 LL tp;
 ^
0_0_30065429_8083.cpp:20:1: error: 'LL' does not name a type
 LL add_mod(LL a,LL b,LL mod){  //快乘法 基于快速幂的二分思想 
 ^
0_0_30065429_8083.cpp:31:1: error: 'LL' does not name a type
 LL quick(LL a,LL b,LL mod){
 ^
0_0_30065429_8083.cpp:41:20: error: 'LL' was not declared in this scope
 bool Miller_Rabbin(LL n,LL a){ //米勒拉宾素数判断函数主体
                    ^
0_0_30065429_8083.cpp:41:25: error: 'LL' was not declared in this scope
 bool Miller_Rabbin(LL n,LL a){ //米勒拉宾素数判断函数主体
                         ^
0_0_30065429_8083.cpp:41:29: error: expression list treated as compound expression in initializer [-fpermissive]
 bool Miller_Rabbin(LL n,LL a){ //米勒拉宾素数判断函数主体
                             ^
0_0_30065429_8083.cpp:41:30: error: expected ',' or ';' before '{' token
 bool Miller_Rabbin(LL n,LL a){ //米勒拉宾素数判断函数主体
                              ^