# 1433. Check If a String Can Break Another String

## Description

Given two strings: s1 and s2 with the same size, check if some permutation of string s1 can break some permutation of string s2 or vice-versa. In other words s2 can break s1 or vice-versa.

A string x can break string y (both of size n) if x[i] >= y[i] (in alphabetical order) for all i between 0 and n-1.

Example 1:

Input: s1 = "abc", s2 = "xya"
Output: true
Explanation: "ayx" is a permutation of s2="xya" which can break to string "abc" which is a permutation of s1="abc".


Example 2:

Input: s1 = "abe", s2 = "acd"
Output: false
Explanation: All permutations for s1="abe" are: "abe", "aeb", "bae", "bea", "eab" and "eba" and all permutation for s2="acd" are: "acd", "adc", "cad", "cda", "dac" and "dca". However, there is not any permutation from s1 which can break some permutation from s2 and vice-versa.


Example 3:

Input: s1 = "leetcodee", s2 = "interview"
Output: true


Constraints:

• s1.length == n
• s2.length == n
• 1 <= n <= 10^5
• All strings consist of lowercase English letters.

## Solutions

• class Solution {
public boolean checkIfCanBreak(String s1, String s2) {
char[] cs1 = s1.toCharArray();
char[] cs2 = s2.toCharArray();
Arrays.sort(cs1);
Arrays.sort(cs2);
return check(cs1, cs2) || check(cs2, cs1);
}

private boolean check(char[] cs1, char[] cs2) {
for (int i = 0; i < cs1.length; ++i) {
if (cs1[i] < cs2[i]) {
return false;
}
}
return true;
}
}

• class Solution {
public:
bool checkIfCanBreak(string s1, string s2) {
sort(s1.begin(), s1.end());
sort(s2.begin(), s2.end());
return check(s1, s2) || check(s2, s1);
}

bool check(string& s1, string& s2) {
for (int i = 0; i < s1.size(); ++i) {
if (s1[i] < s2[i]) {
return false;
}
}
return true;
}
};

• class Solution:
def checkIfCanBreak(self, s1: str, s2: str) -> bool:
cs1 = sorted(s1)
cs2 = sorted(s2)
return all(a >= b for a, b in zip(cs1, cs2)) or all(
a <= b for a, b in zip(cs1, cs2)
)


• func checkIfCanBreak(s1 string, s2 string) bool {
cs1 := []byte(s1)
cs2 := []byte(s2)
sort.Slice(cs1, func(i, j int) bool { return cs1[i] < cs1[j] })
sort.Slice(cs2, func(i, j int) bool { return cs2[i] < cs2[j] })
check := func(cs1, cs2 []byte) bool {
for i := range cs1 {
if cs1[i] < cs2[i] {
return false
}
}
return true
}
return check(cs1, cs2) || check(cs2, cs1)
}

• function checkIfCanBreak(s1: string, s2: string): boolean {
const cs1: string[] = Array.from(s1);
const cs2: string[] = Array.from(s2);
cs1.sort();
cs2.sort();
const check = (cs1: string[], cs2: string[]) => {
for (let i = 0; i < cs1.length; i++) {
if (cs1[i] < cs2[i]) {
return false;
}
}
return true;
};
return check(cs1, cs2) || check(cs2, cs1);
}