5 Ways of Taking Input in Python To use Python in competitive programming, you will have to know how to take input from stdin. |

Euler's Totient Function If you are given a number N, you have to determine how many integers between 1 and N have a GCD of 1 with N. |

Binary Search Finding a number in a sorted array using binary search. |

Sieve of Eratosthenes A beginner's number theory tutorial on Sieve of Eratosthenes. |

Faster I/O Learn how to use faster I/O methods in sport programming. |

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