题解 | #密码验证合格程序#
密码验证合格程序
https://www.nowcoder.com/practice/184edec193864f0985ad2684fbc86841
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while(reader.ready()) {
String input = reader.readLine();
if(input.length() <= 8) { System.out.println("NG");
continue;
}
boolean exist_upper = false;
boolean exist_lower = false;
boolean exist_number = false;
boolean exist_other = false;
for(int i = 0;i < input.length();i++) {
char temp = input.charAt(i);
if(temp-'A'>=0 && temp-'A'<26) {
exist_upper = true;
}else if(temp-'a'>=0 && temp-'a'<26) {
exist_lower = true;
}else if(temp-'0'>=0 && temp-'0'<10) {
exist_number = true;
}else exist_other = true;
}
int code_type = 0;
if(exist_upper) code_type++;
if(exist_lower) code_type++;
if(exist_number) code_type++;
if(exist_other) code_type++;
if(code_type < 3) {
System.out.println("NG");
continue;
}
boolean isContains = false;
for(int i = 0;i < input.length()-5;i++) {
String temp = input;
String zi = temp.substring(i, i+3);
String zhu = temp.substring(i+3);
if(contains(zhu, zi)) {
System.out.println("NG");
isContains = true;
break;
}
}
if(isContains) continue;
else System.out.println("OK");
}
reader.close();
}
private static boolean contains(String zhu,String zi) {
for(int i = 0;i < zhu.length()-2;i++) {
String temp = zhu.substring(i, i+3);
if(temp.equals(zi)) return true;
}
return false;
}
}
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