Given two integers rows and cols, return a rectangle of stars — rows rows, each cols stars wide. This is the Square Star Pattern problem generalized to independent row and column counts. Both solutions carry over directly: the nested loopsNested LoopsAn outer loop over rows, an inner loop appending one character at a time to build each row. version just uses cols instead of n for the inner bound, and the string repetitionString RepetitionBuilding the repeated row once with a built-in, then repeating that row rows times. version builds the cols-wide row once and repeats it rows times.