c-gcc, 100 bytes

Result

WA

Duration

1069ms

Code [DL]

f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}

stdin

76
63

stdout

stderr

/tmp/code.c:1:1: warning: data definition has no type or storage class
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
 ^
/tmp/code.c:1:1: warning: type defaults to 'int' in declaration of 'f' [-Wimplicit-int]
/tmp/code.c:1:3: warning: type defaults to 'int' in declaration of 'h' [-Wimplicit-int]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
   ^
/tmp/code.c:1:5: warning: type defaults to 'int' in declaration of 'w' [-Wimplicit-int]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
     ^
/tmp/code.c:1:7: warning: type defaults to 'int' in declaration of 'v' [-Wimplicit-int]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
       ^
/tmp/code.c:1:9: warning: return type defaults to 'int' [-Wimplicit-int]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
         ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:16: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                ^~~~~
/tmp/code.c:1:16: warning: incompatible implicit declaration of built-in function 'scanf'
/tmp/code.c:1:16: note: include '<stdio.h>' or provide a declaration of 'scanf'
+#include <stdio.h>
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                ^~~~~
/tmp/code.c:1:59: warning: implicit declaration of function 'putchar' [-Wimplicit-function-declaration]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                                                           ^~~~~~~
/tmp/code.c:1:79: error: empty character constant
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                                                                               ^~
/tmp/code.c:1:87: warning: implicit declaration of function 'puts' [-Wimplicit-function-declaration]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                                                                                       ^~~~
/tmp/code.c:1:93: warning: assignment to 'int' from 'char *' makes integer from pointer without a cast [-Wint-conversion]
 f,h,w,v;main(){scanf("%d%d",&h,&w);while(h--){while(++v%w)putchar(1-v%w&&f&&h?'':'*');puts(f="*");}}
                                                                                             ^
/root/script: line 7: /tmp/code: not found
rm: can't remove '/tmp/code': No such file or directory