/in/foo.c: In function 'Search':
/in/foo.c:5:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
 for (int j=0,j<n,j++)
               ^
/in/foo.c:10:2: error: 'retun' undeclared (first use in this function)
  retun -1;
  ^~~~~
/in/foo.c:10:2: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:11:1: error: expected expression before '}' token
 }
 ^
/in/foo.c:11:1: error: expected expression before '}' token
/in/foo.c:5:10: warning: unused variable 'j' [-Wunused-variable]
 for (int j=0,j<n,j++)
          ^
/in/foo.c: In function 'main':
/in/foo.c:15:7: error: stray '\357' in program
  int m；
       ^
/in/foo.c:15:8: error: stray '\274' in program
  int m；
        ^
/in/foo.c:15:9: error: stray '\233' in program
  int m；
         ^
/in/foo.c:16:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'printf'
     printf("请输入n个整数(n<10000)\n");
     ^~~~~~
/in/foo.c:18:3: warning: 'return' with no value, in function returning non-void
   return;
   ^~~~~~
/in/foo.c:12:5: note: declared here
 int main()
     ^~~~
/in/foo.c:19:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
  scanf("%d",n);
          ^
/in/foo.c:21:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
  for (int i=0,i<n,i++)
                ^
/in/foo.c:27:13: error: 'm' undeclared (first use in this function)
  scanf("%d",m);
             ^
/in/foo.c:27:15: error: expected ')' before ';' token
  scanf("%d",m);
               ^
/in/foo.c:30:1: error: expected expression before '}' token
 }
 ^
/in/foo.c:21:11: warning: unused variable 'i' [-Wunused-variable]
  for (int i=0,i<n,i++)
           ^
/in/foo.c:20:6: warning: unused variable 'a' [-Wunused-variable]
  int a[n];
      ^
/in/foo.c: In function 'Search':
/in/foo.c:11:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^