#include<stdio.h> void main() { unsigned int i; scanf("%ud",&amp;i); if(i<10) printf("一位数\n"); else if(i<100) printf("两位数\n"); else if(i<1000) printf("三位数\n"); else if(i<10000) printf("四位数\n"); else(i<10000); 和else printf("五位数\n"); ...

#include<stdio.h> void main() { double i,s; scanf("%lf",&amp;i); if (i<=1e+5) s=0.1*i; else if(i>=1e+5&amp;&amp;i<=2e+5) s=((1e+5)*0.1)+(i-(1e+5))*0.075; else if(i>=2e+5&amp;&amp;i<=4e+5) s=((1e+5)*0.1)+((1e+5)*0.075)+(i-(2e+5))*0.05; else if(i>=4e+5&amp;&amp;i<=6e+5) s=((1e+5)*0.1)+((1e+...