Download Read N Characters Given Read4 II Call multiple times.py
# The read4 API is already defined for you. # @param buf, a list of characters # @return an integer # def read4(buf): class Solution(object): def __init__(self): self.buff = [''] * 4 self.offset = 0 self.bufsize = 0 def read(self, buf, n): """ :type buf: Destination buffer (List[str]) :type n: Maximum number of characters to read (int) :rtype: The number of characters read (int) """ pos, eof = 0, False while not eof and pos < n: if self.bufsize == 0: self.bufsize = read4(self.buff) eof = self.bufsize < 4 byte = min(n - pos, self.bufsize) for i in range(byte): buf[pos + i] = self.buff[self.offset + i] self.offset = (self.offset + byte) % 4 self.bufsize -= byte pos += byte return pos
Leetcode 158 Read N Characters Given Read4 II Call multiple times problem solution in python3 with explanation. This is the best place to expand your knowledge and get prepared for your next interview.
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