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2283 - Caraghios
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==Rezolvare== <syntaxhighlight lang="python"> def validate_input(input_str): """ Verifică dacă input-ul are maxim 1.000.000 de cifre. :param input_str: șirul de caractere de verificat :return: True dacă input-ul este valid, False în caz contrar """ return len(input_str) <= 1000000 def count_caraghios(input_str): """ Calculează numărul de apariții a cifrei 1 într-un șir dat. :param input_str: șirul de caractere de analizat :return: numărul de apariții a cifrei 1, conform cerințelor specifice """ nr = 0 x = input_str[0] if x == '1': nr += 1 for y in input_str[1:]: if y == '1': nr += 1 if x == '8': nr += 1 x = y return nr if __name__ == "__main__": input_file = "caraghios.in" output_file = "caraghios.out" with open(input_file, "r") as f: input_str = f.read().strip() if not validate_input(input_str): print("Input invalid! Numărul de cifre trebuie să fie mai mic sau egal cu 1.000.000.") return else: print("Input valid!") nr = count_caraghios(input_str) with open(output_file, "w") as f: f.write(str(nr)) </syntaxhighlight>
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