实验三

墨蓝 2022-01-07 02:07 257阅读 0赞

程序一源代码：

for循环

#include"stdio.h"
    int main()
    {
        int i,j;
        long s=0;
        for(i=22;i<=1002;i+=20)
            s+=i;
        printf("%ld\n",s);
        return 0;
    
    }

![1619443-20190422134921401-2111804207.jpg][]

while循环

#include"stdio.h"
    int main()
    {
        int i=22,j;
        long s=0;
        while(i<=1002)
        {
            s+=i;
            i+=20;
        }
        printf("%ld\n",s);
        return 0;
    
    }

![1619443-20190422140417025-128531029.jpg][]

do-while循环

#include"stdio.h"
    int main()
    {
        int i=2,j;
        long s=0;
        do
        {
            i+=20;
            s+=i;
        }
        while(i<1002);
        printf("%ld\n",s);
        return 0;
    }

![1619443-20190422140811762-2129384993.jpg][]

程序二源代码：

#include"stdio.h"
    int main()
    {
        int i,a,b,c,s=0;
        for(i=100;i<1000;i++)
        {
            a=i/100;
            b=(i-100*a)/10;
            c=i%10;
            if(i==a*a*a+b*b*b+c*c*c)
            {
                printf("%d\t",i);
                s++;
            }
        }
        printf("\n一共有%d个水仙花数\n",s);
        return 0;
    }

![1619443-20190422141129592-1717550255.jpg][]

程序三源代码：

#include"stdio.h"
    int main()
    {
        int i,a,b,c,sum=0,l;
        for(a=1;a<=5;a++)
        {
            for(b=1;b<=5;b++)
            {
                for(c=1;c<=5;c++)
                {
                    if(a!=b&&a!=c&&b!=c)    /*如果a,b,c互不相等，则该三位数abc符合要求*/
                    {
                        i=100*a+10*b+c;
                        printf("%d\t",i);
                        sum++;
                        if(l==10)
                        {
                            printf("\n");
                            l=0;
                        }
                    }
                }
    
            }
    
        }
        printf("\n符合要求的三位数共有%d个\n",sum);
        return 0;
    
    
    
    }

![1619443-20190422143159839-478322134.jpg][]

转载于:https://www.cnblogs.com/P201821440033/p/10749956.html

[1619443-20190422134921401-2111804207.jpg]: /images/20211227/bcde8772db2147fdbb70ae78b6e6a7cb.png
[1619443-20190422140417025-128531029.jpg]: /images/20211227/5e322c8d433a4c58ab6d330df148219d.png
[1619443-20190422140811762-2129384993.jpg]: /images/20211227/26e78ebae54a4a95a6f1cbd62d9477fd.png
[1619443-20190422141129592-1717550255.jpg]: /images/20211227/4db9687048414fc1aa6e121ebd3ca2fe.png
[1619443-20190422143159839-478322134.jpg]: /images/20211227/906a4e2de52a46f19e50a9711fb56a00.png