View Compilation Error

0_0_25134405_18040.cpp:6:1: error: 'LL' does not name a type
 LL A, B, C, D;
 ^
0_0_25134405_18040.cpp:8:1: error: 'LL' does not name a type
 LL gcd;
 ^
0_0_25134405_18040.cpp:9:12: error: variable or field 'exgcd' declared void
 void exgcd(LL a, LL b, LL & x, LL & y) {
            ^
0_0_25134405_18040.cpp:9:12: error: 'LL' was not declared in this scope
0_0_25134405_18040.cpp:9:18: error: 'LL' was not declared in this scope
 void exgcd(LL a, LL b, LL & x, LL & y) {
                  ^
0_0_25134405_18040.cpp:9:24: error: 'LL' was not declared in this scope
 void exgcd(LL a, LL b, LL & x, LL & y) {
                        ^
0_0_25134405_18040.cpp:9:29: error: 'x' was not declared in this scope
 void exgcd(LL a, LL b, LL & x, LL & y) {
                             ^
0_0_25134405_18040.cpp:9:32: error: 'LL' was not declared in this scope
 void exgcd(LL a, LL b, LL & x, LL & y) {
                                ^
0_0_25134405_18040.cpp:9:37: error: 'y' was not declared in this scope
 void exgcd(LL a, LL b, LL & x, LL & y) {
                                     ^