C语言:任意输入一个自然数,输出该自然数的各位数字组成的最大数。例如,输入 1593 ,则输出为 9531 。

2025-03-11 09:31:43
推荐回答(3个)
回答1:

#include"stdio.h"

intmain(intargc,char**argv)

charch;

intarr[10]={0};ﻩﻩ//存储各个数字出现的次数,初始化为0

//统计各个数字出现的次数

while(1)

ch=getchar();

if(ch=='\n')

break;

arr[ch-'0']++;

inti,j;

//输出各个数字出现的次数

for(i=9;i>=0;i--)

printf("数字%d出现%d次.\n",i,arr[i]);

//输出这些数组成的最大的数

printf("\n组成的最大的数:\n");

for(i=9;i>=0;i--)

for(j=arr[i];j>0;j--)

printf("%d",i);

printf("\n");

//输出这些数组成的最小的数,注意:0不输出

printf("\n组成的最小的数:\n");

for(i=1;i<=9;i++)

for(j=arr[i];j>0;j--)

printf("%d",i);

printf("\n");

return0;

扩展资料:

while使用方法:

示例C++

int a=NULL;

while(a<10)

{

a++;//自加

if(a>5)//不等while退出循环,直接判断循环

{

break;//跳出循环

}

}

结果:结束后a的值为6。

Javascript

下面的例子定义了一个循环程序,这个循环程序的参数i的起始值为0。该程序会反复运行,直到i大于10为止。i的步进值为1。

<html>

<body>

<script type="text/javascript">

var i=0

while(i<=10)

{document.write("The number is"+i);

document.write("<br/>");

i=i+1;}

</script>

</body>

</html>

结果

The number is0

The number is1

The number is2

The number is3

The number is4

The number is5

The number is6

The number is7

The number is8

The number is9

The number is10

回答2:

#include   
#define N 100  
main ()  
{  
    char a[N]={'\0'};   //初始化试一下,我在vc6.0没报错 
    int i,j,k;  
    scanf("%s",a);  
    for(i=0;a[i]!=0;i++)  
        for(k=i+1;a[k]!=0;k++)  
            if(a[i]            {  
                j=a[i];  
                a[i]=a[k];  
                a[k]=j;  
            }  
            puts(a);  
}

回答3:

在我这儿测试的没错误啊,你的是啥错误,把你的错误输出发上来,还有你用于测试的输入内容

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