package com;

import java.util.Scanner;

public class Test2 {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("请输入人数...");
        int a = in.nextInt();
        int n = a/8;
        int t = a%8;
        System.out.println(t+"--------"+n);
        
        if(t==0){
            for(int i= 1;i<=8;i++){
                System.out.println("第"+i+"条跑道有"+n+"人");
            }
        }
        if(t>0){
            for(int i= 1;i<=t;i++){
                System.out.println("第"+i+"条跑道有"+((n*8)+1)+"人");
            }
            
            for(int i= t+1;i<=8;i++){
                System.out.println("第"+i+"条跑道有"+((n*8))+"人");
            }
                
                
        }
        
    }
}

------解决方案--------------------
下面是我的代码。 由于着急。 还有几个数字没法分组 例如 22、26、33、 你理解下代码然后自己添加下情况就ok了
import java.util.Scanner;
public class a {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub	
		//22、26
	    Scanner in = new Scanner(System.in);
	    System.out.println("请输入人数...");
	    int num = in.nextInt();
	    boolean m =false;
	    for (int j = 8; j >= 4; j--) {
			Sel(num,j,m);
   	
	    }        
	}
	
	public static void Sel(int num,int j, boolean m){
		int group = num/j;
	    int bl= num%j;  
	    if((bl==0 || bl==j-1)&& m==false){
	    	System.out.println("分为"+group+"组");
	    	for (int i = 0; i <= group; i++) {
	    		if (i<group) {
					System.out.println("第" + (i + 1) + "组，有"+j+"人");
				}else if(bl!=0){
					System.out.println("第" + (i + 1) + "组，有"+(j-1)+"人");
				}	
	    	}
	    	if(bl==0){
	    		System.exit(0);
	    	}
	    }	
	}
}


------解决方案--------------------
我的：
Java code
public static void main(String[] args) throws DocumentException {
        Scanner in = new Scanner(System.in);
        System.out.println("请输入人数...");
        int num = in.nextInt();
        boolean m = false;
        int groups = num % 8 == 0 ? num / 8 : num / 8 + 1;
        System.out.println("共分为" + groups + "组");

        while (groups >= 1) {
            System.out.println("第"+groups+"组人数：" + num / groups);
            num = num - num / groups;
            groups--;
        }

    }

------解决方案--------------------
Java code

Scanner in = new Scanner(System.in);
        System.out.println("请输入人数...");
        int x = in.nextInt();
        int i = 8;
        int m = x/8;
        int mod = x%8;
        int count = 0;
        int group = 0;
        if (mod == 0) {
            group = m;
            count = i;
        } else {
            group = m+1;
            count = x/(group);
        }
        if (x%(group) != 0) {
            int a = 0;
            for (int j = 0; j < x%(group); j++) {
                System.out.println("第" + (++a) + "组共" + (count + 1) + "人");
            }
            for (int j = 0; j < (group)-(x%(group)); j++) {
                System.out.println("第" + (++a) + "组共" + count + "人");
            }
        } else {
            for (int j = 0; j < m+1 ; j++) {
                System.out.println("第" + j + "组共" + count + "人");
            }
        }