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AI Agents: What They Are and How They Will Change Work

Artificial intelligence has moved beyond simply answering questions and generating text. A new generation of AI systems—known as AI agents—is emerging with the ability to plan tasks, use tools, make decisions, and complete multi-step workflows with less human intervention. From managing emails and analyzing data to writing software and assisting customers, AI agents could significantly change how people work. What Are AI Agents? An AI agent is a software system that can perceive information, reason about a goal, take actions, and adapt based on the results. Traditional AI tools usually respond to a specific instruction. For example, you might ask an AI chatbot to summarize a document, and it provides a summary. An AI agent can go further. You could give an agent a goal such as: "Research three competitors, compare their pricing, summarize their main features, and prepare a report." The agent may then: 1) Understand the objective. 2) Break the task into smaller steps. 3) Searc...

Identifiers and Keywords

IDENTIFIERS AND KEYWORDS
Every word in a C program is either a keyword or an identifier.

Identifiers
Identifiers are normally names given to program elements such as variables, 
arrays, and functions. They are grouped by using a sequence of letters (both uppercase and lowercase), numerals, and underscores.
Following are the rules for creating identifier names:
* Identifiers cannot adds any special characters or punctuation marks 
(like #, $, ^, ?, ., etc.) except the underscore “_”.
* There cannot be two successive underscores.
* Keywords cannot be used as identifiers.
* The case of alphabetic characters that make the identifier name is significant. For example, ‘FIRST’ is different from ‘First’ and ‘first’.
* Identifiers must start with an underscope or a letter. However, use of underscore as the first character must be ignored because several complier-defined identifiers in the standard C library have underscore as their first character. So, inadvertently copied names may cause definition incampatibility .
* Identifiers can be of any reasonable length. They should not has more than 31 characters. (They can actually be longer than 31, but the compiler looks at only the first 31 characters of the name.)

Keywords 
Like every computer language, C has a set of reserved words they are known as keywords that cannot be used as an identifier. All keywords are normally a series of characters that have a fixed meaning. By compact, all keywords must be written in lower case letters. 

Keywords in C language
auto, break, case, char, const, continue,      default, do, double, else, enum, extern, float, for, goto, if, int, long, register, return, short, signed, sizeof, static, struct, switch, typedef, union, unsigned, void, volatile, while

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