题解 | #删除字符串中出现次数最少的字符#
删除字符串中出现次数最少的字符
https://www.nowcoder.com/practice/05182d328eb848dda7fdd5e029a56da9
import java.util.*; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); String s=in.nextLine(); Map<Character,Integer> map=new HashMap<>(); for (int i=0;i<s.length();i++){ map.put(s.charAt(i),map.getOrDefault(s.charAt(i),0)+1); } int min=Integer.MAX_VALUE; for (int t:map.values()){ min=Math.min(min,t); } StringBuilder sb=new StringBuilder(); for (char ch:s.toCharArray()){ if (map.get(ch)!=min){ sb.append(ch); } } System.out.println(sb.toString()); } }