Can every input in base64 encoding be uniquely represented by one output?

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Yes, every input in base64 encoding can be uniquely represented by one output. Base64 is a type of encoding that represents binary data using a combination of 64 ASCII characters. The encoded data consists of only printable characters, making it easy to transmit and store.

In base64 encoding, every group of three bytes is represented by four characters. Since there are 64 possible characters in the encoding table, there are 64^4 possible combinations of four characters. This means that every input in base64 encoding can be uniquely represented by one output.

Furthermore, the encoding process is deterministic, which means that the same input will always result in the same output. Therefore, base64 encoding is a one-to-one mapping between inputs and outputs, ensuring that every input is uniquely represented by one output.