1450

// Number of Students Doing Homework at a Given Time

/**
 * @param {number[]} startTime
 * @param {number[]} endTime
 * @param {number} queryTime
 * @return {number}
 */
var busyStudent = function (startTime, endTime, queryTime) {
    let count = 0
    let size = startTime.length
    for (let i = 0; i < size; i++) {
        if (startTime[i] <= queryTime && endTime[i] >= queryTime) count++;
    }

    return count;
};