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  1. Prepare
  2. Algorithms
  3. Implementation
  4. Counting Valleys
  5. Discussions

Counting Valleys

  • that_real_throw1
     + 0 comments

    javascript solution

    function countingValleys(steps, path) { let valleys = 0; let altitude = 0;

    for (let i = 0; i < steps; i++) {
    if (path[i] === 'U') {
        altitude++;
        // Check if we just came up to sea level
        if (altitude === 0) {
            valleys++;
        }
    } else if (path[i] === 'D') {
        altitude--;
    }
}

return valleys;

    }