unsigned int数据类型最大数

 #include <stdio.h>

 int main()
 {
     unsigned int a = , b = ;
     while (a>)
     {
         a++;
     }

     printf("unsigned int数据类型最大数是：%u\n", a- );

     unsigned int n = a - ;
     do
     {
         n = n / ;
         b++;
     } while (n > );
     printf("unsigned int数据类型最大数共有%d位。\n", b);

     return ;
 }