现有21朵鲜花分给5人，若每个人分的鲜花数各不相同，则分的鲜花最多的人至少分的多少朵鲜花？

　　　　 var all = 21;
	var people = [0,0,0,0,0];
	for(var i=1;i<=people.length;i++){
		people[i-1] = i;
		all -= i;
	}
	var start = people.length-1;
	while(all>0){
		people[start]++;
		all--;
		start--;
		if (start<=0) {start = people.length-1};
	}
	alert(people[people.length-1])