zoukankan      html  css  js  c++  java
  • c作业4(实验三)

    1.计算s=22+42+62........+1002

    #include <stdio.h>

    int main()

    {

             long int s=0;

             int i;

             for (i=22;i<=1002;)

             {

                       s=s+i;

                       i+=20;

             }

             printf("s=%ld ",s);

             return 0;

    }

                           

     

    #include <stdio.h>

    int main()

    {

             long int s=0;

             int i=22;

             do

             {

                       s=s+i;

                       i+=20;

             }

             while (i<=1002);

             printf("s=%ld ",s);

             return 0;

    }

     

    #include <stdio.h>

    int main()

    {

             long int s=0;

             int i=22;

             while (i<=1002)

             {

                       s=s+i;

                       i+=20;

             }

             printf("s=%ld ",s);

             return 0;

    }


    2.输出水仙花数

    #include <stdio.h>

    int main()

    {

    int i,j,a,b,c;

    for (j=0,i=100;i<1000;i++)

    {

             a=i/100;

             b=i/10-a*10;

             c=i%10;

             if (a*a*a+b*b*b+c*c*c==i)

             {

                       printf("%d ",i);

                       j++;

             }

    }

    printf("The narcissistic number have %d ",j);

    return 0;

    }

     3.排列组合

    #include <stdio.h>

    int main()

    {

    int i,j,k;

    int m=0;

    for (i=1;i<6;i++)

    {

             for (j=1;j<6;j++)

             {

                       if (i!=j)

                       {

                                for (k=1;k<6;k++)

                                {

                                         if (i!=k&&j!=k)

                                         {

                                                   printf("%5d",i*100+j*10+k);

                                                   m++;

                                         }

                                }

                       }

             }

    }

    printf(" %d ",m);

    return 0;

    }

  • 相关阅读:
    关于书签(BookMark)操作;
    清理内存
    string系列操作1
    SQL临时表
    线程,临界区的研究
    Unix 纪元时间
    shell 模仿验证登陆密码
    delphi字符串中取数字
    delphi MD5加密,BASE64加解密
    delphi sendGetIntmessage、sendStructMessage、sendGetStructMessage和sendTextMessage函数的用法
  • 原文地址:https://www.cnblogs.com/p201821440037/p/10819415.html
Copyright © 2011-2022 走看看