src.c: In function 'hef':
src.c:13:8: error: expected identifier or '(' before ';' token
{int l,;
^
src.c:15:3: error: 't' undeclared (first use in this function)
{t=u,u=v,v=t;}
^
src.c:15:3: note: each undeclared identifier is reported only once for each function it appears in
src.c:16:10: error: 'r' undeclared (first use in this function)
while( (r=u%v)!=0)
^
src.c: At top level:
src.c:21:5: error: redefinition of 'hef'
int hef(int u,int h)
^
src.c:12:5: note: previous definition of 'hef' was here
int hef(int u,int v)
^
src.c: In function 'hef':
src.c:23:14: error: 'v' undeclared (first use in this function)
return(u*v/h);
^