Created
March 3, 2019 03:21
-
-
Save graphoarty/95b40134ff67d786657d32aa158ff980 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <iostream> | |
#include <cstring> | |
using namespace std; | |
// brute force the entire thing. | |
char* getSubstring(char c[], int starting, int ending){ | |
int length = ending - starting + 1; | |
int temp = length; | |
if(length > strlen(c)){ | |
return "null"; | |
} | |
char* str = new char[length + 1]; | |
char *p1 = str; | |
char *p2 = &c[starting]; | |
while(temp--){ | |
*(p1++) = *(p2++); | |
} | |
*p1 = '\0'; | |
return str; | |
} | |
char* getReverseString(char c[]){ | |
int length = strlen(c); | |
int temp = length; | |
char* str = new char[length]; | |
char* p1 = str; | |
char* p2 = &c[strlen(c) - 1]; | |
while(temp--){ | |
*(p1++) = *(p2--); | |
} | |
*p1 = '\0'; | |
return str; | |
} | |
int main(){ | |
char* str = "jklollolkidding"; | |
cout << getSubstring(str, 2, 6) << endl; | |
char* palindromeString = new char[strlen(str)]; | |
int palindromeLength = 0; | |
for(int i = 0; i < strlen(str); i++){ | |
for(int j = 0; j < strlen(str); j++){ | |
char* subStr = getSubstring(str, i, j); | |
if(strcmp(subStr, "null")){ | |
char* revSubStr = getReverseString(subStr); | |
if(!strcmp(subStr, revSubStr)){ | |
if(strlen(subStr) > palindromeLength){ | |
palindromeString = subStr; | |
palindromeLength = strlen(subStr); | |
} | |
} | |
} | |
} | |
} | |
cout << palindromeString << endl; | |
return 0; } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment