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Classical Problems

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SPOJ Problem 11. Factorial (FCTRL)

Find the number of trailing zeros for any factorial

SPOJ Problem 1681. Cylinder (CYLINDER)

Find the largest volume of a cylinder cut and formed from a sheet of paper

SPOJ Problem 42. Adding Reversed Numbers (ADDREV)

Add two reversed numbers and output their reversed sum

SPOJ Problem 4408. Build a Fence (FENCE1) Solution

Build a fence to maximize an area enclosed between the fence and a fixed wall