Question

How to sort a string using qsort in C

Answer 1

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

int compare_function(const void* a, const void* b) {
    return strcmp((const char*)a, (const char*)b);
}

int main() {
    char str[] = "cprogramming";

    qsort(str, strlen(str), sizeof(char), compare_function);
    
    puts(str);
    
    return 0;
}



/*
run:

acggimmnoprr

*/

 

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