测试输入包含若干测试用例,每个测试用例包含2行,第1行为一个长度不超过5的字符串,第2行为一个长度不超过80的字符串。注意这里的字符串包含空格,即空格也可能是要求被统计的字符之一。当读到'#'时输入结束,相应的结果不要输出。
对每个测试用例,统计第1行中字符串的每个字符在第2行字符串中出现的次数,按如下格式输出: c0 n0 c1 n1 c2 n2 ... 其中ci是第1行中第i个字符,ni是ci出现的次数。
I THIS IS A TEST i ng this is a long test string #
I 2 i 3 5 n 2 g 2
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); while (in.hasNext()) { String str1 = in.nextLine(); HashMap<Character, Integer> hashMap = new HashMap<>(); ArrayList<Integer> arrayList = new ArrayList<>(); if (str1.equals("#")) { break; } else { String str2 = in.nextLine(); for (int i = 0; i < str1.length(); i++) { for (int j = 0; j < str2.length(); j++) { if (str1.charAt(i) == str2.charAt(j)) if (hashMap.get(str1.charAt(i)) == null) { hashMap.put(str1.charAt(i), 1); } else { hashMap.put(str1.charAt(i), hashMap.get(str1.charAt(i)) + 1); } } arrayList.add(hashMap.get(str1.charAt(i))); hashMap.put(str1.charAt(i), 0); //如果有相同的字符下一轮置为0 } } for (int i = 0; i < str1.length(); i++) { if (arrayList.get(i) == null) { System.out.println(str1.charAt(i) + " " + "0"); } else { System.out.println(str1.charAt(i) + " " + arrayList.get(i)); } } } } }
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String s; while ((s = br.readLine()) != null) { if (s.equals("#")) break; String str = br.readLine(); for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); int count = 0; for (int j = 0; j < str.length(); j++) { char cc = str.charAt(j); if (c == cc) count++; } System.out.println(c + " " + count); } } } }
package nowcoder02.demo47; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // 终止条件一般不需要处理 while (scanner.hasNext()){ int[] record = new int[256]; char[] first = scanner.nextLine().toCharArray(); char[] second = scanner.nextLine().toCharArray(); for (char c : second) record[c]++; for (char c : first) System.out.println(c+" "+record[c]); } } }
//本代码思路:创建一个ascii整型数组,收集第二行字符串中每个字符出现的次数 //然后按第一行字符串的需要打印次数 import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); while(sc.hasNext()){ int[] ascii = new int[127]; char[] target = sc.nextLine().toCharArray(); char[] str = sc.nextLine().toCharArray(); for(int i=0;i<str.length;i++){ ascii[(int)(str[i])-1]++; } for(int i=0;i<target.length;i++){ char c = (char)(target[i]); System.out.println(c+" "+ascii[(int)(target[i])-1]); } } } }