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four color problem. In DICTIOUS you will not only get to know all the dictionary meanings for the word
four color problem, but we will also tell you about its etymology, its characteristics and you will know how to say
four color problem in singular and plural. Everything you need to know about the word
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English
Noun
four color problem (plural four color problems)
- (graph theory) The problem of coloring a map with no more than four colors, such that no two adjacent regions have the same color.