/in/foo.c: In function 'ele':
/in/foo.c:15:33: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
         if(((w>=11)||(l>=11))&&(abs(w-l))>=2){
                                 ^~~
/in/foo.c: In function 'main':
/in/foo.c:45:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&q);
             ^