Problema
Draw a hollow square of side size: the first and last rows are all *, and the rows in between have * only at the two ends with spaces inside.
Implement hollow_square(size).
Input
size: The side length.
Output
Return the rows from top to bottom.
Restricciones
1 ≤ size ≤ 50
Ejemplos
Ejemplo 1
Entrada:
size = 4
Salida esperada:
expected = ["****", "* *", "* *", "****"]Entrada:
long long size = 4;
Salida esperada:
std::vector<std::string> expected = {"****", "* *", "* *", "****"};Entrada:
long size = 4;
Salida esperada:
string[] expected = new string[] {"****", "* *", "* *", "****"};Explicación
Rows are "****", "* *", "* *", "****".
Ejemplo 2
Entrada:
size = 1
Salida esperada:
expected = ["*"]Entrada:
long long size = 1;
Salida esperada:
std::vector<std::string> expected = {"*"};Entrada:
long size = 1;
Salida esperada:
string[] expected = new string[] {"*"};Explicación
A 1×1 square is a single "*".
Referencias
Este reto está adaptado para CodeUtility. Sigue el enunciado y las restricciones indicadas arriba.