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Why Do We Sometimes Write LL in C++?

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Why do we sometimes write LL in C++? Why do we sometimes write <span>LL</span> in C++? When writing C++, you often see others adding <span>LL</span> after numbers, for example, <span>1000000000000LL</span>. As a beginner, you might wonder: can’t we just write <span>1000000000000</span> directly? The answer is — not necessarily. The story begins with an “overflow” Imagine … Read more

In-Depth Exploration of C Language: long and long long, and the “Unwritten Rules” of CPU Architecture!

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In-Depth Exploration of C Language: long and long long, and the "Unwritten Rules" of CPU Architecture!

We have already learned aboutshort and int types. A short typically occupies 2 bytes, while an int usually occupies 4 bytes. The larger the byte size, the greater the range of data it can represent. For example, the int type can represent values around ±2 billion, as clearly stated in Microsoft’s documentation. Today, we will … Read more