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Bubble sort

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    Authored by Kiryuu Sakuya
    main.c 874 B
    #include <stdio.h>
    
    int main() {
        int a[5] = {3, 1, 4, 5, 2};
    
        // Bubble Sort
        /*
         * 冒泡排序
         * 比较相邻的元素。如果第一个比第二个大,就交换他们两个。
         * 对每一对相邻元素作同样的工作,从开始第一对到结尾的最后一对。这步做完后,最后的元素会是最大的数。
         * 针对所有的元素重复以上的步骤,除了最后一个。
         * 持续每次对越来越少的元素重复上面的步骤,直到没有任何一对数字需要比较。
         */
        for (int i = 1; i <= 4; i++) {
            for (int j = 0; j < 5 - i; j++) {
                if (a[j] > a[j + 1]) {
                    int temp = a[j];
                    a[j] = a[j + 1];
                    a[j + 1] = temp;
                }
            }
        }
        for (int i = 0; i < 5; i++) {
            printf("%d ", a[i]);
        }
        return 0;
    }
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