How do you concatenate strings in C?

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Experienced Computer trainer having worked in IT sector for 20 years.

In C, the strcat() function is used to concatenate two strings. It concatenates one string (the source) to the end of another string (the destination). The pointer of the source string is appended to the end of the destination string, thus concatenating both strings.
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Given two strings str1 and str2, our task is to concatenate these two strings. There are multiple ways to concatenate two strings in C language: Without Using strcat() function Using standard method Using function Using recursion
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