Question

How to print the palindrome words in a string with C

Answer 1

#include <stdio.h>
#include <string.h>

void PrintPalindromeWords(char str[], char* delimiter) {
    char* word = strtok(str, delimiter);

    while (word != NULL) {
        int result = _stricmp(word, _strrev(_strdup(word)));
        if (result == 0 && strlen(word) >= 3)
            puts(word);
        word = strtok(NULL, delimiter);
    }
}

int main(void)
{
    char s[] = "c madam c++ civic java pytyp dart";

    PrintPalindromeWords(s, " ");

    return 0;
}





/*
run:

madam
civic
pytyp

*/

 

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Answer 2

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

void PrintPalindromeWords(char str[], char* delimiter) {
    char* word = strtok(str, delimiter);

    while (word != NULL) {
        char* p = _strdup(word);
        int result = _stricmp(word, _strrev(p));
        free(p);
        if (result == 0 && strlen(word) >= 3) {
            puts(word);
        }
        word = strtok(NULL, delimiter);
    }
}

int main(void)
{
    char s[] = "c madam c++ civic java pytyp dart";

    PrintPalindromeWords(s, " ");

    return 0;
}





/*
run:

madam
civic
pytyp

*/

 

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Answer 3

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

int main(void)
{
    char string[] = "c madam c++ civic java pytyp dart";
    char delimiters[] = " ";

    char* p = strtok(string, delimiters);

    while (p) {
        char* word = _strdup(p);
        if (strcmp(word, _strrev(p)) == 0 && strlen(p) >= 3) {
            puts(p);
        }
        free(word);

        p = strtok(NULL, delimiters);
    }


    return 0;
}




/*
run:

madam
civic
pytyp

*/

 

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