Telephone directory

Code for telephone directory in c #include<stdio.h> #include<string.h> #include<windows.h> #include<time.h> struct teledir {     char firstname[50];     char lastname[50];     char address[50];     char landline[15];     char mobile[15]; }td; struct signup {     char firstname[20];     char lastname[20];     char email[50];  ...

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