#include <iostream> #include <cctype> int main() { char input; std::cout << "Character is a letter. " << std::endl; } else if (isdigit(input)) { std::cout << "Character is a number. " << std::endl; } else { std::cout << "The character is a symbol. " << std::endl; } 0 return; } Ushbu dastur cctype kutubxonasining isalpha va isdigit funksiyalaridan foydalanib, belgi harf yoki raqam ekanligini aniqlaydi. isalpha funksiyasi harf yoki raqam bo'lsa, isdigit funksiyasi esa aksini beradi. isdigit funksiyasi esa harf yoki raqam bo'lsa, isdigit funksiyasi bo'lsa, to'g'ri javob beradi.
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