{"id":10271,"date":"2022-09-23T02:39:35","date_gmt":"2022-09-22T21:09:35","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-c-random-number-unique-first-number\/"},"modified":"2022-09-23T02:39:35","modified_gmt":"2022-09-22T21:09:35","slug":"solved-c-random-number-unique-first-number","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-c-random-number-unique-first-number\/","title":{"rendered":"[Solved] C# Random number unique first number"},"content":{"rendered":"

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Generally, I don’t think there is any requirement that pseudorandom generators should generate unique numbers given unique seeds.<\/p>\n

The only think it happens is that, given a seed, the generator will always generate the same number sequence (obtained by calling multiple times the next method) and the sequence will repeat at some point.
\nHowever, the C# Random class uses a subtractive generation algorithm, where the next random number is generated basing on previous numbers of the sequence. Hence, there may be some kind of dependency between the number and the seed, which makes the random number generator to generate unique numbers every time the seed is changed.<\/p>\n

If you want to be sure, either try it yourself with seeds from int.MinValue<\/code> to int.MaxValue<\/code>, or check the C#<\/code> implementation here
\nhttps:\/\/referencesource.microsoft.com\/#mscorlib\/system\/random.cs<\/a><\/p>\n<\/p><\/div>\n

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solved C# Random number unique first number <\/p>\n","protected":false},"excerpt":{"rendered":"

[ad_1] Generally, I don’t think there is any requirement that pseudorandom generators should generate unique numbers given unique seeds. The only think it happens is that, given a seed, the generator will always generate the same number sequence (obtained by calling multiple times the next method) and the sequence will repeat at some point. However, … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324],"class_list":["post-10271","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c"],"yoast_head":"\n[Solved] C# Random number unique first number - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-c-random-number-unique-first-number\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] C# Random number unique first number - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Generally, I don’t think there is any requirement that pseudorandom generators should generate unique numbers given unique seeds. 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