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- #include <iostream>
- int main()
- {
- long long int input;
- std::cout << "Input="; std::cin >> input;
- do
- {
- std::cout << "Invalid input. Please, try again." << std::endl;
- std::cout << "Input="; std::cin >> input;
- }
- while(input > 50);
- for(int i = 0; i <= input; i++)
- {
- for(int k = 0; k < i; k++)
- {
- std::cout << "* ";
- }
- std::cout << std::endl;
- }
- return 0;
- }
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