一、概念

二、代碼

#include <stdio.h>
int main()
{
#pragma 1.已知一個無序的數(shù)組,里面有5個元素,要求對數(shù)組進行排序
    int nums[5] = {99,23,33,44,21};
    
    int length = sizeof(nums) / sizeof(nums[0]);

    for (int i = 0 ; i < length; i++) {
        printf("nums[%i] = %i\n",i,nums[i]);
    }
    
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < length -1 -i; j++) {
//            printf("*");
            printf("%i == %i\n",j,j+1);
            
            if (nums[j] > nums[j+1]) {
                int temp = nums[j];
                nums[j] = nums[j+1];
                nums[j+1] = temp;
            }
            
        }
//        printf("\n");
    }
    
    printf("------");
    for (int i = 0 ; i < length; i++) {
        printf("nums[%i] = %i\n",i,nums[i]);
    }
    return 0;
}