Mutual Fund NAV Entry Date Tracker
Mutual Fund NAV Entry Date Tracker
MediumBinary Search0% accepted
Investor Ajay tracks Sensex Fund NAV on BSE website. He wants to know purchase date when fund had specific NAV price to calculate returns. Historical NAV sorted by date. Binary search finds exact purchase date from NAV value.
Approach
Given sorted historical NAV values and target NAV, find entry date index or -1 if not found.
Input
nav=[100,102,105,108,110,115,120],target=108
Output
3
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