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Answers and rating deltas for
How to get the n if I know the result of 1+2+3+..+n=n*(n+1)/2?
| Author | Votes | Δ |
|---|---|---|
| Grzegorz Górkiewicz | 3 | +1.46 |
| skypjack | 3 | +0.69 |
| Sandipan Dey | 0 | -0.88 |
Last visited: Jun 24, 2017, 4:03:14 PM