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Java Solution for LeetCode algorithm problems, continually updating
package g2301_2400.s2396_strictly_palindromic_number;
// #Medium #Math #Two_Pointers #Brainteaser #2022_09_14_Time_0_ms_(100.00%)_Space_40.6_MB_(75.27%)
public class Solution {
public boolean isStrictlyPalindromic(int n) {
for (int i = 2; i <= n - 2; i++) {
String num = Integer.toString(i);
String s = baseConversion(num, 10, i);
if (!checkPalindrome(s)) {
return false;
}
}
return true;
}
private String baseConversion(String number, int sBase, int dBase) {
// Parse the number with source radix
// and return in specified radix(base)
return Integer.toString(Integer.parseInt(number, sBase), dBase);
}
private boolean checkPalindrome(String s) {
int start = 0;
int end = s.length() - 1;
while (start <= end) {
if (s.charAt(start) != s.charAt(end)) {
return false;
}
start++;
end--;
}
return true;
}
}