In the process of learning to program, there is a lot you can not distinguish and do not know when to use braces, when to use parentheses. This article we will clarify a bit more about them

1. Ideology In fact permutation, we must build the program, permutation functions to swap the value of the element, eg sequencer program is a typical. To permutations 2 number, One can imagine like us 2 the cup. A glass of lemonade container, B cup pesticide containers. How do we move on water […]

1. What is the ASCII code? ACSI (American Standard Code for Information Interchange – Ascii information USA), often pronounced ace-fiber-ki, the character and the character code based on the Latin alphabet used in modern English and other Western European languages. It is often used to display text in computers and communication equipment […]

When compared 2 number of C, we have done some very simple math “`<, >, &gt;=, <=, ==, !=```, tuy nhiên để so sánh chuỗi thì chúng ta không thể dùng các phép toán đó mà cần phải dùng hàm **strcmp** nằm trong thư viện **string.h**.