Operations Research
The Seven Bridges of Königsberg

The Seven Bridges of Königsberg

Imagine you are taking a stroll around the 18th century Prussian city of Königsberg (currently Kaliningrad, Russia). The river Pregel runs through Königsberg and there are two large islands in this river. The islands are connected to each other and to the mainland by...

Mr. Pity vs. Nature

Mr. Pity vs. Nature

Mr. Pity was a very, very unlucky man. As a kid he had once accidentally stepped on a butterfly in the forest. But this was no ordinary butterfly! It was the most beautiful butterfly Nature had ever produced. Out of revenge, Nature cursed young Mr. Pity: "Whatever you...

Puzzle box problem

Puzzle box problem

[latexpage] Problem You are being held captive in a bunker with no possible way to communicate with any other life form. There is only one way to escape from this prison. You see a wooden box in front of you that has 8 knobs. It looks like the lock of the bunker. Each...

Highways, low costs

Highways, low costs

For most multichannel merchants, transportation of goods is the highest operational expense. Inbound freight costs for domestically sourced products typically range from 2% to 4% of gross sales, while for imported products, inbound freight costs 6% to 12% of gross...

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