c-gcc, 86 bytes

Result

WA

Duration

1089ms

Code [DL]

h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}

stdin

14
60

stdout

*************************************************************
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*                                                           *
*************************************************************

stderr

/tmp/code.c:1:1: warning: data definition has no type or storage class
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
 ^
/tmp/code.c:1:1: warning: type defaults to 'int' in declaration of 'h' [-Wimplicit-int]
/tmp/code.c:1:3: warning: data definition has no type or storage class
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
   ^
/tmp/code.c:1:3: warning: type defaults to 'int' in declaration of 'c' [-Wimplicit-int]
/tmp/code.c:1:5: warning: data definition has no type or storage class
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
     ^
/tmp/code.c:1:5: warning: type defaults to 'int' in declaration of 'i' [-Wimplicit-int]
/tmp/code.c:1:7: warning: return type defaults to 'int' [-Wimplicit-int]
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
       ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:7: warning: type of 'w' defaults to 'int' [-Wimplicit-int]
/tmp/code.c:1:23: warning: implicit declaration of function 'putchar' [-Wimplicit-function-declaration]
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
                       ^~~~~~~
/tmp/code.c:1:40: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
                                        ^~~~~
/tmp/code.c:1:40: warning: incompatible implicit declaration of built-in function 'scanf'
/tmp/code.c:1:40: note: include '<stdio.h>' or provide a declaration of 'scanf'
+#include <stdio.h>
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
                                        ^~~~~
/tmp/code.c:1:75: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context]
 h;c;i;main(w){for(;~h;putchar(!i++?c=!~scanf("%d%d",&h,&w)*--h,i=~w,10:i%w*c?32:42));}
                                                                        ~~~^~