In the problem why is the index of coin subtracted by one in the code given in the video. for eq the index should be lower bound-coin only.
Money change problem stl
@Codarikh lower bound gives us the position which is greater than or equal to the number you are searching for.
but we want here position of number less than or equal to the number we are searching for that is why we have taken -1 here.
watch the video slowly again you will get it.
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