Question

How to get the middle words of a string in C

Answer 1

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

char* getMiddleWords(const char* string) {
    // Split the string into an array of words
    char* wordsArr[64]; // Assuming a maximum of 64 words
    int numWords = 0;
    char* token = strtok((char*)string, " ");
    
    while (token != NULL) {
        wordsArr[numWords++] = token;
        token = strtok(NULL, " ");
    }
    
    char* result = (char*)malloc(256 * sizeof(char)); // Allocate memory for result
    if (numWords % 2 == 0) {
        int middle1 = floor(numWords / 2) - 1;
        int middle2 = floor(numWords / 2);
        sprintf(result, "%s %s", wordsArr[middle1], wordsArr[middle2]);
    } else {
        int middle_minus_1 = floor(numWords / 2) - 1;
        int middle = floor(numWords / 2);
        int middle_plus_1 = floor(numWords / 2) + 1;
        sprintf(result, "%s %s %s", wordsArr[middle_minus_1], wordsArr[middle], wordsArr[middle_plus_1]);
    }
    
    return result;
}

int main() {
    char string[] = "c++ c java php c# python rust";
    
    char* middleWords = getMiddleWords(string);
    printf("%s\n", middleWords);
    
    free(middleWords); // Free allocated memory
    
    return 0;
}



/*
run:

java php c#

*/

 

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