Els set ponts de Königsberg és un famós problema matemàtic que va donar origen a la teoria de grafs. Königsberg, l'actual Kaliningrad, és una ciutat russa per la qual passa el riu Pregolya. Enmig del riu, dues grans illes estaven connectades entre elles i a les ribes mitjançant una estructura de set ponts en total.
Per tal d'organitzar una desfilada, els habitants de la ciutat es van plantejar si era possible recórrer els set ponts de manera que només es passés per cadascun d'ells un sol cop.
Source: Wikipedia.org
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