C Exercise Example 29
100 cases of classic C language
Topic: no more than five to a positive integer, requirements: First, it is seeking few, two, reverse print out the digits.
Program analysis: decomposition of each digit to learn, as explained below.
Source Code:
// Created by www.w3big.com on 15/11/9. // Copyright © 2015年 本教程. All rights reserved. // #include <stdio.h> int main( ) { long a,b,c,d,e,x; printf("请输入 5 位数字:"); scanf("%ld",&x); a=x/10000; /*分解出万位*/ b=x%10000/1000; /*分解出千位*/ c=x%1000/100; /*分解出百位*/ d=x%100/10; /*分解出十位*/ e=x%10; /*分解出个位*/ if (a!=0){ printf("为 5 位数,逆序为: %ld %ld %ld %ld %ld\n",e,d,c,b,a); } else if(b!=0) { printf("为 4 位数,逆序为: %ld %ld %ld %ld\n",e,d,c,b); } else if(c!=0) { printf("为 3 位数,逆序为:%ld %ld %ld\n",e,d,c); } else if(d!=0) { printf("为 2 位数,逆序为: %ld %ld\n",e,d); } else if(e!=0) { printf("为 1 位数,逆序为:%ld\n",e); } }
The above example output is:
请输入 5 位数字:12345 为 5 位数,逆序为: 5 4 3 2 1