Author Archives: Saikat

Total amount of time covered by the intervals

There’s a room with a TV and people are coming in and out to watch it. The TV is on only when there’s at least a person in the room. For each person that comes in, we record the start … Continue reading

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Summation of different combinations

You have a string of digits say 123. You can insert a + or – sign in front of every digit. Find all of the different possibilities and return the sum of all results. For example: +1+2+3 = 6 +12+3 … Continue reading

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Application stages and timelines for OCI

Overall it took 5+ months to complete the entire application process. Application Status Remarks Date of Status Your Passport and OCI Card have now reached CKGS Application Centre from the Embassy / Consulate and is being sorted and will be … Continue reading

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PPF (Public Provident Fund) Rules

http://www.bankofindia.co.in/pdf/PPFrules_14%20.pdf One deposit with a minimum amount of Rs.500/- is mandatory in each financial year.

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SD Card writing speed for shooting movies with Canon DSLR

When shooting movies, use a large-capacity SD card rated SD Speed Class 6 or higher. If you use a card having a slow writing speed, a five-level indicator might appear on the right of the screen during movie shooting. It … Continue reading

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Drop boxes for syringe disposal in Seattle

http://www.kingcounty.gov/depts/health/communicable-diseases/hiv-std/patients/drug-use-harm-reduction/needle-disposal.aspx

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Check if a string can become empty by recursively deleting a given sub-string

Given a string “str” and another string “sub_str”. We are allowed to delete “sub_str” from “str” any number of times. The task is to find if “str” can become empty by removing “sub_str” again and again. Examples: Input : str … Continue reading

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