# LintCode Weekly 26

- [Set Operation](/algorithm-notes/lintcode-weekly-26/set-operation.md)
- [Predict the Winner / The Game Of Take Numbers](/algorithm-notes/lintcode-weekly-26/predict-the-winner-the-game-of-take-numbers.md)
- [Longest Path On The Tree](/algorithm-notes/lintcode-weekly-26/longest-path-on-the-tree.md)
- [Ask For Cooling Time](/algorithm-notes/lintcode-weekly-26/ask-for-cooling-time.md)
