[单选]  #include__inta[10]={4,5,6,15,20,13,12,7,8,9};__voidmain()__{__inti,s[4]=0;__for(i=0;i<10;i++){__switch(a[i]%4){__case0:s[0]+=a[i];break;__case1:s[1]+=a[i];break;__case2:s[2]+=a[i];break;__default:s[3]+=a[i];break;__}__}__for(i=0;i<4;i++)printf(“%d“,s[i]);__}