1，在⻢克思⼿稿中有⼀道趣味的数学问题：⼀共有30个⼈，可能包括男⼈，⼥⼈和 * ⼩孩。他们在⼀家饭馆吃饭共花了50先令，其中每个男⼈花3先令，每个⼥⼈花2先 * 令，每个⼩孩花1先令。请问男⼈、⼥⼈和⼩孩各⼏⼈？用java语言实现

public class People {
public static void main(String[] args) {
int totalPeople = 30;
int totalMoney = 50;
int manMoney = 3;
int womanMoney = 2;
int childMoney = 1;
int manNum, womanNum;

for(manNum = 0; manNum <= totalPeople; manNum++){
for(womanNum = 0; womanNum <= totalPeople-manNum; womanNum++){
int childNum = totalPeople - manNum - womanNum;
int money = manNum*manMoney + womanNum*womanMoney + childNum*childMoney;
if(money == totalMoney){
System.out.println("男人："+manNum+"人，女人："+womanNum+"人，小孩："+childNum+"人");
}
}
}
}
}