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统计字符数
阅读量:569 次
发布时间:2019-03-09

本文共 741 字,大约阅读时间需要 2 分钟。

统计字符串中出现次数最多的字符,并输出字符及其出现次数。如果有多个字符出现次数相同且最多,输出ASCII码最小的字符。

步骤解析:

  • 读取输入字符串: 使用input().strip()读取输入字符串,去除首尾空格。
  • 初始化计数器数组: 创建长度为26的数组count,用于记录每个字符的出现次数。
  • 初始化最大值和结果字符: max_count记录最大出现次数,result_char记录字符。
  • 遍历字符串: 对于每个字符,更新其对应位置的计数器。
  • 更新最大值和结果字符: 如果当前字符的计数器超过max_count,更新最大值和结果字符。若等于max_count,比较字符ASCII码,更新结果字符。
  • 输出结果: 打印字符及其出现次数。
  • 代码实现:

    s = input().strip()count = [0] * 26max_count = 0result_char = ''for char in s:    index = ord(char) - ord('a')    count[index] += 1    if count[index] > max_count:        max_count = count[index]        result_char = chr(index)    elif count[index] == max_count:        current_char = chr(index)        if ord(current_char) < ord(result_char):            result_char = current_charprint(f"{result_char} {max_count}")

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