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Monthly Archives: August 2015
Efficient algorithm for finding incorrect transactions in double-entry bookkeeping
I wanted to find an efficient algorithm for finding missing or problematic transactions with YNAB Debt Sync. The naïve O(n²) approach of comparing all transactions from both budgets would obviously not scale. This post explains how I achieved an average time … Continue reading
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Managing short-term lending with two-way YNAB
This post explains the reason behind my latest personal project, YNAB Debt Sync. Shortly after I started using YNAB I ran into a problem. How was I meant to borrow cash from —or spot cash to— family and friends? The … Continue reading
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