Algorithms

• An algorithm is a precise, step-by-step method for solving a problem.

• Example 1.1.1.

Compute 1 + 2 + 3 + ··· + n

1. sum = 0

2. i = 0

3. i = i + 1

4. sum = sum + i

5. Repeat lines 3 and 4 until i == n.

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