Number of Students Doing Homework at a Given Time.py

# Runtime: 67 ms (Top 36.82%) | Memory: 13.9 MB (Top 71.93%)
class Solution(object):
    def busyStudent(self, startTime, endTime, queryTime):
        res = 0
        for i in range(len(startTime)):
            if startTime[i] <= queryTime <= endTime[i]:
                res += 1
            else:
                pass
        return res