I understand the problem but not the tests
It seems like the water content halves every ~69 minutes. But the first sentence about 100% and 100 minutes are very confusing. If it is exponential decay, then water should never reach 0.
Find state names that end with the letter A
Create an n-by-n null matrix and fill with ones certain positions
Determine the square root
given 3 sides, find area of this triangle
letter yes yes & letter no no
Use of regexp
Looking for Squares
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