编程题
井字棋
public class Main {
public boolean checkWon(int[][] board) {
int n = board.length;
int sum = 0;
int i = 0, j = 0;
for (; i < n; i++) {
for (; j < n; j++) {
sum += board[i][j];
if (sum == n) {
return true;
}
}
}
sum = 0;
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
sum += board[j][i];
if (sum == n) {
return true;
}
}
}
sum = 0;
for (i = 0; i < n; i++) {
sum += board[i][i];
if (sum == n) {
return true;
}
}
sum = 0;
for (i = 0; i < n; i++) {
sum += board[i][n - 1 - i];
if (sum == n) {
return true;
}
}
return false;
}
}
密码强度等级
import java.util.Scanner;
@SuppressWarnings({
"all"})
public class Main2 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
int len = s.length();
int score = 0;
score = getLength(s, len) + getNum(s, len) + getChar(s, len) + getString(s, len);
level(score);
}
private static int getLength(String s, int len) {
if (len >= 8) {
return 25;
} else if (len >= 5 && len <= 7) {
return 10;
} else if (len <= 4){
return 4;
}
return 0;
}
private static int getNum(String s, int len) {
int count = 0;
for (int i = 0; i < len; i++) {
if (s.charAt(i) - '0' >= 0 && s.charAt(i) - '0' <= 9) {
count++;
}
}
if (count > 1) {
return 20;
} else if (count == 1) {
return 10;
} else {
return 0;
}
}
private static int getChar(String s, int len) {
int count1 = 0;
int count2 = 0;
for (int i = 0; i < len; i++) {
if (s.charAt(i) >= 65 && s.charAt(i) <= 90) {
count1++;
} else if (s.charAt(i) >= 97 && s.charAt(i) <= 122) {
count2++;
}
}
if (count1 > 0 && count2 > 0) {
return 20;
} else if (count1 > 0 || count2 > 0) {
return 10;
} else {
return 0;
}
}
private static int getString(String s, int len) {
int count = 0;
for (int i = 0; i < len; i++) {
if (!((s.charAt(i) >= 65 && s.charAt(i) <= 90))
&& !(s.charAt(i) >= 97 && s.charAt(i) <= 122)
&& !((s.charAt(i) - '0' >= 0 && s.charAt(i) - '0' <= 9))) {
count++;
}
}
if (count > 1) {
return 25;
} else if (count == 1) {
return 10;
} else {
return 0;
}
}
private static void level(int score) {
if (score >= 90) {
System.out.println("VERY_SECURE");
} else if (score >= 80 && score < 90) {
System.out.println("SECURE");
} else if (score >= 70 && score < 80) {
System.out.println("VERY_STRONG");
} else if (score >= 60 && score < 70) {
System.out.println("STRONG");
} else if (score >= 50 && score < 60) {
System.out.println("AVERAGE");
} else if (score >= 25 && score < 50) {
System.out.println("WEAK");
} else if (score >= 0 && score < 25) {
System.out.println("VERY_WEAK");
}
}
}