C语言冒泡排序

#include "stdio.h"

void sort(int* arr, int len)
{
    for (int i = 0; i < len; ++i) {
        for (int j = i; j < len; ++j) {
            if (arr[i] > arr[j]) {
                int tmp = arr[i];
                arr[i] = arr[j];
                arr[j] = tmp;
            }
        }
    }
}

void print_arr(int *arr, int len)
{
    for (int i = 0; i < len; ++i) {
        printf("%d", arr[i]);
    }
}

int main()
{
    int arr[] = { 2, 1, 4, 3};
    sort(arr, sizeof(arr) / sizeof(arr[0]));
    print_arr(arr, sizeof(arr) / sizeof(arr[0]));
}