View Compilation Error

0_0_15955394_24162.cpp:4:15: error: 'b' has not been declared
 int cmp(int a,b)
               ^
0_0_15955394_24162.cpp: In function 'int cmp(int, int)':
0_0_15955394_24162.cpp:6:11: error: 'b' was not declared in this scope
  return a>b;
           ^
0_0_15955394_24162.cpp: In function 'int main()':
0_0_15955394_24162.cpp:11:13: error: expected unqualified-id before ';' token
     int n,j,;
             ^
0_0_15955394_24162.cpp:13:24: error: 'i' was not declared in this scope
             int a[100];i=0;
                        ^