View Compilation Error

0_0_33037857_10664.cpp:13:10: error: 'b' has not been declared
 N(int a, b,c,d)
          ^
0_0_33037857_10664.cpp:13:12: error: 'c' has not been declared
 N(int a, b,c,d)
            ^
0_0_33037857_10664.cpp:13:14: error: 'd' has not been declared
 N(int a, b,c,d)
              ^
0_0_33037857_10664.cpp: In constructor 'N::N(int, int, int, int)':
0_0_33037857_10664.cpp:15:7: error: 'b' was not declared in this scope
 x=a,y=b,z=c,num=d;
       ^
0_0_33037857_10664.cpp:15:11: error: 'c' was not declared in this scope
 x=a,y=b,z=c,num=d;
           ^
0_0_33037857_10664.cpp:15:17: error: 'd' was not declared in this scope
 x=a,y=b,z=c,num=d;
                 ^
0_0_33037857_10664.cpp: At global scope:
0_0_33037857_10664.cpp:22:13: error: expected initializer before ')' token
 inline int Q)
             ^