View Compilation Error

0_0_38255291_564.cpp: In function 'int main()':
0_0_38255291_564.cpp:19:20: error: invalid conversion from 'unsigned int*' to 'int*' [-fpermissive]
         la=turn(a,x);
                    ^
0_0_38255291_564.cpp:4:5: note: initializing argument 1 of 'int turn(int*, char*)'
 int turn(int a[],char x[]);
     ^
0_0_38255291_564.cpp:20:20: error: invalid conversion from 'unsigned int*' to 'int*' [-fpermissive]
         lb=turn(b,y);
                    ^
0_0_38255291_564.cpp:4:5: note: initializing argument 1 of 'int turn(int*, char*)'
 int turn(int a[],char x[]);
     ^