Problem 1545. Return area of square

Solution 1917789

Submitted on 1 Sep 2019 by chen dong

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Test	Status	Code Input and Output
1	Pass	x = 0; y_correct = 0; assert(isequal(area_square(x),y_correct))
2	Pass	x = 1; y_correct = 1; assert(isequal(area_square(x),y_correct))
3	Pass	x = 11; y_correct = 121; assert(isequal(area_square(x),y_correct))
4	Pass	x = 101; y_correct = 10201; assert(isequal(area_square(x),y_correct))