Codefights

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Are Isomorphic?

Description

Two two-dimensional arrays are isomorphic if they have the same number of rows and each pair of respective rows contains the same number of elements.

Given two two-dimensional arrays, check if they are isomorphic.

Example

  • For array1 = [[1, 1, 1], [0, 0]] and

    array2 = [[2, 1, 1], [2, 1]]

    the output should be

    areIsomorphic(array1, array2) = true;

  • For array1 = [[2], []]

    and array2 = [[2]]

    the output should be

    areIsomorphic(array1, array2) = false.

Input/Output

  • [execution time limit] 4 seconds (js)

  • [input] array.array.integer array1

    Guaranteed constraints:
    1 ≤ array1.length ≤ 5,
    0 ≤ array1[i].length ≤ 5,
    0 ≤ array1[i][j] ≤ 50.

  • [input] array.array.integer array2

    Guaranteed constraints:
    1 ≤ array2.length ≤ 5,
    0 ≤ array2[i].length ≤ 5,
    0 ≤ array2[i][j] ≤ 50.

  • [output] boolean

[JavaScript (ES6)] Syntax Tips

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// Prints help message to the console
// Returns a string
function helloWorld(name) {
console.log("This prints to the console when you Run Tests");
return "Hello, " + name;
}

Solution

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function areIsomorphic(array1, array2) {
  return (
    array1.length === array2.length &&
    array1.every((row, i) => row.length === array2[i].length)
  );
}