How many colors you need to color a map, say of India? India has 28 states and 8 union territories. It might seem that we will need a good number of colours to colour the map of India so that the adjacent states and union territories do not get the same colour. However, that's not the case.
We just need a small set of colors to achieve this. This was found by Francis Guthrie when he was trying to color the map of the countries of England. That might England was ruling a large part of the world a well.
Interesting? Watch the video to know about it
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