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  1. Prepare
  2. Data Structures
  3. Arrays
  4. Array Manipulation
  5. Discussions

Array Manipulation

  • ariellyrycs
     + 2 comments

    I'm not taking the credit. i waste a lot of time with this one too. my js solution, in case someone interested.

    function arrayManipulation(n, queries) {
    let tmp = {},
        max,
        currentNumber = 0;
    for (let i = queries.length - 1; i >= 0; i -= 1) {
        let [firstElem, lastElement, value] = queries[i];
        tmp[firstElem] = (tmp[firstElem] || 0) + value;
        tmp[lastElement + 1] = (tmp[lastElement + 1] || 0) - value;
    }
    for (let key in tmp) {
        currentNumber += tmp[key];
        if (!max || currentNumber > max) {
            max = currentNumber;
        }
    }
    return max;
}