Sample program in C which implements STRING CONCATENATION?

I really need the sample program in C programming that uses String Concatenation. Can you please help about this matter?thank you so much.

Sample program in C which implements STRING CONCATENATION?
In C, to concatenate onto the end of of str1 n characters from the beginning of string str2:








int nChars;


strncat( str1, str2, nChars );





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