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Module Difference array
Difference array
Frequency: 7/10
An application of prefix sum.
Resources
- [Codeforces blog: An Introduction To Difference Arrays](https://codeforces.com/blog/entry/78762)
Problems
Range update
731 / 755
800
2D range update
477 / 484
800
Bulk range update
400 / 434
900
Climbing
152 / 176
1000
Stair range update
303 / 350
1100
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Prefix sum
Introduction to Prefix sum
Difference array
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