amex card 15 digits

* Wi), i = 0, ..., 16, first the sum of the first 17 digitsAi: Indicates the ID number value of position IWi: A weighted factor representing position I7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4-2 (2) Computational model Y = mod (S, 11) (3) The corresponding check code is obtained through the model Y:0 1 2 3 4 5 6 7 8 9 10Check code: 1 0 X 9 8 7 6 5 4 3 2That is, if you get the remainder of 1 then the final check bit p should be the corresponding 0. 15-di

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 15-digit number) About the verif

Package cyachina. util; /*** Created by intellij idea.* User: Administrator* Date: 2004-8-13* Time: 15:37:28* To change this template use file | Settings | file templates.*/Public class idcardutil { /**** @ Param century 19 for 19xx and 20 for 20xx* @ Param idcardno15 ID card number to be converted* @ Return*/Public static string from15to18 (INT century, string idcardno15 ){ String centurystr = "" + century

1031. Identification of identity card (15) time limit MS Memory limit 65536 KB code length limit 8000 B procedure StandardAuthor Chen, YueA valid ID number consists of 17 regions, date number and sequence number plus 1-bit check code. The calculation rules for the checksum code are as follows:The first 17 digits are weighted to sum, the weights are assigned: {7,9

code. Sort order from left to rightIs: Six-digit address code, eight-digit birth date code, three-digit sequence code, and one-digit verification code. The address code indicates the Administrative Code of the county (city, flag, district) where the resident account of the encoding object is located. The birthdate code indicates the year, month, and day of the encoded object. The year is represented by four digits, and there is no delimiter between

:12010x19890101123411010819671130186637070419881216001xInput Sample 2:2320124198808240056110108196711301862Output Example 2:All passedThinking: Mastering the relationship between global variables and local variables1#include 2 //take the modulus to find the remainder3 4 intweight[ -]={5 7,9,Ten,5,8,4,2,1,6,3,7,9,Ten,5,8,4,26 };7 Charstandard[ One]={8 '1','0','X','9','8','7','6','5','4','3','2' 9 };Ten intMainintargcChar*argv[]) One { A Charstr[ -]; - BOOLAll=true; - intcount;