Shulou(Shulou.com)06/03 Report--

This article introduces the knowledge of "how to gracefully judge whether a value is in a collection". In the operation of practical cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

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# include int main () {int a = 5; if (a = = 1 | | a = = 2 | | a = = 3 | | a = = 4 | | a = = 5) {std::cout

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