03-28 10:25 安卓
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蛇形字符串输出
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String s = scanner.next();
Map mA = new HashMap<>(); // 存储大写字母
Map ma = new HashMap<>(); // 存储小写字母
for (char ss : s.toCharArray()) {
if (ss >= 'A' && ss <= 'Z') {
mA.put(ss, mA.getOrDefault(ss, 0) + 1);
}
if (ss >= 'a' && ss <= 'z') {
ma.put(ss, ma.getOrDefault(ss, 0) + 1);
}
}
for (Map.Entry entry : mA.entrySet()) {
char key = entry.getKey();
int value = entry.getValue();
}
}
import java.util.Map;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String s = scanner.next();
Map
Map
for (char ss : s.toCharArray()) {
if (ss >= 'A' && ss <= 'Z') {
mA.put(ss, mA.getOrDefault(ss, 0) + 1);
}
if (ss >= 'a' && ss <= 'z') {
ma.put(ss, ma.getOrDefault(ss, 0) + 1);
}
}
for (Map.Entry
char key = entry.getKey();
int value = entry.getValue();
}
}
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xyz442 楼主
楼主 安卓
if (ma.containsKey((char) (key + 32))) {
continue;
} else {
mA.remove(key);
}
}
if (mA.isEmpty()) {
System.out.println("Not Found");
return;
}
StringBuilder tmp = new StringBuilder();
Map.Entry<Character, Integer> pre = null;
Map.Entry<Character, Integer> cur = null;
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xyz442 楼主
楼主 安卓
while (!mA.isEmpty()) {
pre = mA.entrySet().iterator().next();
cur = mA.entrySet().iterator().next();
if (cur.getValue() == 0) {
mA.remove(cur.getKey());
continue;
}
tmp.append(cur.getKey()).append((char) (cur.getKey() + 32));
cur.setValue(cur.getValue() - 1);
pre = cur;
while (cur != null && cur.getValue() > 0 && cur.getKey() == pre.getKey() + 1) {
tmp.append(cur.getKey()).append((char) (cur.getKey() + 32));
cur.setValue(cur.getValue() - 1);
pre = cur;
cur = mA.higherEntry(cur.getKey());
}
System.out.println(tmp.toString());
tmp.setLength(0);
}
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