Count Frequencies Within All Given Frequency Ranges

ibm There are n signal frequencies given in an array frequencies, along with m frequency ranges provided in an array ranges. Your task is to count the number of signal frequencies that satisfy all the frequency range conditions. Input: An integer array frequencies, where frequencies[i] represents the frequency of the i-th signal. An array ranges, where ranges[j] = [low_j, high_j] represents a frequency range. Output: An integer, representing the count of frequencies satisfying all frequency range conditions. Constraints: 1 <= n <= 10^5 1 <= m <= 10^5 0 <= frequencies[i] <= 10^9 0 <= low_j <= high_j <= 10^9 Example: Input: frequencies = [15, 25, 35, 45] ranges = [[20, 30], [40, 50]] Output: 2 Example Input 15 25 35 45 2 20 30 40 50