run a loop for a from 0 to 9999 ● see (a+"").length() , if it is k, then add (4-k) zeores before printing a //one more idea if not want to get into length(), Strings etc, just use conditions like <10, <100 & <1000 to know number of digits in number & add zeroes in front accordingly [but will become tiring work to write code if the pin will be of high number of digits so it would be better to make code working for any general number of digits].
run a loop for a from 0 to 9999 ● see (a+"").length() , if it is k, then add (4-k) zeores before printing a //one more idea if not want to get into length(), Strings etc, just use conditions like <10, <100 & <1000 to know number of digits in number & add zeroes in front accordingly [but will become tiring work to write code if the pin will be of high number of digits so it would be better to make code working for any general number of digits].
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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● run a loop for a from 0 to 9999
● see (a+"").length() , if it is k, then add (4-k) zeores before printing a
//one more idea if not want to get into length(), Strings etc, just use conditions like <10, <100 & <1000 to know number of digits in number & add zeroes in front accordingly [but will become tiring work to write code if the pin will be of high number of digits so it would be better to make code working for any general number of digits].
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