int list[100]={0}; // waste of initialization                   // why initialize everything to zero when                   // in the very next line you set it to                   // something else?for (x=0;x<100;x+=4) // this will run 100/4 = 25 times{    list[x]=y;       // what''s y initialized to?    list[x+1]=y+1;    list[x+2]=y+11;    list[x+3]=y+10;    y++;             // whatever it is, it''s 25 more when it''s                     // done}