src.c: In function 'main':
src.c:6:9: error: 'max' redeclared as different kind of symbol
int max(int x,int y,int z);
^
src.c:4:15: note: previous declaration of 'max' was here
int a,b,c,max;
^
src.c:7:8: error: lvalue required as left operand of assignment
max=max(a,b,c);
^
src.c:9:9: error: static declaration of 'max' follows non-static declaration
int max(int x,int y,int z)
^
src.c:6:9: note: previous declaration of 'max' was here
int max(int x,int y,int z);
^