# digit

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### Javascript Test ID card number 15-digit 18-digit

JS implements the last digit when the ID card number is 15 to 18 charactersAlgorithm According to the provisions on the national identity number in the National Standard GB 11643-1999 of the People's Republic of China, the national identity number

### C # code for converting the 15-digit to 18-digit ID card number of the Applet

Now we use all 18-digit ID card numbers, and the previous 15-digit ID card numbers. How can we convert a 15-digit ID card number to an 18-digit ID card number? 1. First, after 6th digits of the 15-digit ID card, "19" is changed to 17 digits, that is,

### Automatically convert 15-digit ID card numbers to 18-digit

Function: Upgrade the ID card number of 15 to 18 characters (according to GB 11643-1999) Parameter: original number (15 digits) Return Value: the 18-digit number after the upgrade. Usage: = idcode (A1) (assuming that A1 contains the original

### ID number 15-digit + 18-digit (C #)

ID number 15, 18 digits. ID 18-bit authentication The 18-digit ID standard is clearly stipulated in the gb11643-1999 "citizenship number", which was implemented by the National Quality and Technical Supervision Bureau on July 1, 1999. Gb11643-1999

### PHP implements generation of Unique Numbers (36-digit non-repeated numbers) _ php instances

This article mainly introduces how to generate a unique number in PHP. In this article, convert the hexadecimal value to 36 to obtain more than 60 million unique numbers that are not repeated, with the number of digits being 10 digits, if you need a

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### Generate a unique number in PHP (the 36-digit serial number is not repeated)

This article mainly introduces how to generate a unique number in PHP. in this article, convert the hexadecimal value to 36 to obtain more than 60 million unique numbers that are not repeated, with the number of digits being 10 digits, if you need a

### Generate a unique number in PHP (the 36-digit serial number is not repeated)

When we want to numbers a large number of data, there is a limit on the number of digits, such as a five-digit license plate number, a ten-digit license number, order serial number, and a short URL, we can use the 36-digit system to calculate

### (C syntax, question 21) four-digit integer, four-digit syntax

(C syntax, question 21) four-digit integer, four-digit syntax Knowledge point: For statement, if statement flexible use   Content: program to find the number of relationships in the four-digit integer abcd that meet the following requirements: (AB +

### Huawei trial-outputs a single digit and a single digit, While Huawei outputs a single digit

Huawei trial-outputs a single digit and a single digit, While Huawei outputs a single digit Two solutions: 1. Add one by one # Include # include using namespace std; int main () {int s; cin> s; int sum = 0; while (s! = 0) {sum = sum + s % 10

### An 18-digit ID card verification calculation function

Because I needed to perform the escalation, verification, and query of the 15-digit old ID card number, and did not find any ready-made functions, I wrote a simple process and hoped to help my friends.This function has a single function and can only

### Hdu 1066 Last non-zero Digit in N! (Number Theory -- n! ), Hdunon-zero

Hdu 1066 Last non-zero Digit in N! (Number Theory -- n! ), Hdunon-zero Last non-zero Digit in N! Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission (s): 6432 Accepted Submission (s): 1593 Problem

### (Hdu step 1.2.8) Specialized Four-Digit Numbers (calculate the sum of Numbers on each Digit), hdu1.2.8

(Hdu step 1.2.8) Specialized Four-Digit Numbers (calculate the sum of Numbers on each Digit), hdu1.2.8 Question: Specialized Four-Digit Numbers Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)

### The Java "Tij" Java implementation finds all 4-digit vampire digits __java

What is the vampire number. A vampire number is a number that has an even number of digits, and can be multiplied by a pair of numbers, and this pair of digits contains the half digits of the product, The number that is selected from the initial

### Three-digit Complement

Jiang Yongjiang Altera Cup National Graduate Electronic Design Competition has a simple question of "representing-37 as a three-digit complement code. The instructor with a score raised an objection to the answer as soon as he came up, believing

### Euler Project question 51st: Prime digit Replacements

Topic links Topic: Of the 9 numbers obtained by the first digit of the permutation, six are prime numbers: 13,23,43,53,73 and 83. By replacing the third and fourth digits of the 56**3 with the same number, this five-digit number is the first number

### Python generates a 6-digit verification code at random, and python generates a 6-digit verification code.

Python generates a 6-digit verification code at random, and python generates a 6-digit verification code. 1. Generate source code Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*- Import random Def generate_verification_code ():''' A 6-digit

### POJ 2196 Specialized Four-Digit Numbers, pojfour-digit

POJ 2196 Specialized Four-Digit Numbers, pojfour-digit At the beginning, I wrote questions on POJ .... A few questions first, hey DescriptionFind and list all four-digit numbers in decimal notation that have the property that the sum of its four

### 18-digit ID card number verification JS Script Function correction

Function checkidcard (strnumber){// ID card number format Function// The citizenship number is a feature combination code,// The Order is from left to right: six-digit address code, eight-digit birth date code, three-digit sequence code, and

### Another proof of the end two-digit type of the complete square number

1. Question (from Rosen, "Elementary number theory and its application" 6th P99 5th)The last two decimal digits (bits and 10) that prove the total square number must be one of the following: {xx, E1, E4, O6, E9}Note: E = even number, O = prime

### The perfect 18-digit ID number for regular expressions

Match the 18-bit ID number and the regular expression is as follows:/^[1-9][0-9]{5} (19|20) [0-9]{2} ((01|03|05|07|08|10|12) (0[1-9]|[ 1-2][0-9]|31) | (04|06|09|11) (0[1-9]| [1-2] [0-9]|30] |02 (0[1-9]|[ 1-2][0-9])) [0-9]{3} ([0-9]|x| X) \$/Note: Now

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