From 541a3acc9d6e5637a903048cba8dced863ee6ca1 Mon Sep 17 00:00:00 2001 From: mimisn Date: Tue, 25 Oct 2022 20:33:28 +0800 Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=8E=92=E5=BA=8F?= =?UTF-8?q?=E4=BB=A3=E7=A0=81?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- codes/mimisn/9969120.java | 54 ++++++++++++++++++++++++++++++++++++++ codes/mimisn/Sort.class | Bin 0 -> 1233 bytes codes/mimisn/Sort.java | 54 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 108 insertions(+) create mode 100644 codes/mimisn/9969120.java create mode 100644 codes/mimisn/Sort.class create mode 100644 codes/mimisn/Sort.java diff --git a/codes/mimisn/9969120.java b/codes/mimisn/9969120.java new file mode 100644 index 00000000..6c9b8da2 --- /dev/null +++ b/codes/mimisn/9969120.java @@ -0,0 +1,54 @@ +public class Sort { + public static void doSort(int[] arr) { + // 空数组 或 只有一个元素的数组，则什么都不做。 + if (arr == null || arr.length == 1) return; + + // 外层循环表示趟数。 + for (int i = 0; i < arr.length - 1; i++) { + + // 默认有序，如果发生交换说明无序。 + boolean isSorted = true; + + // j 表示 要比较元素对的第一个。 + for (int j = 0; j < arr.length - 1 - i; j++) { + // 不能写 >= ，否则不稳定。 + if (arr[j] > arr[j + 1]) { + int temp = arr[j]; + arr[j] = arr[j + 1]; + arr[j + 1] = temp; + // 发生交换了，说明无序。 + isSorted = false; + } + } + + // 如果没有发生交换，则数组已经有序，结束冒泡。 + if (isSorted) return; + + // 把每一趟排序的结果也输出一下。 + System.out.print("第 "+ (i+1) + " 趟: "); + print(arr); + } + } + + public static void main(String[] args) { + int[] arr = {3,44,38,5,47,15,36,26,27,2,46,4,19,50,48}; + + System.out.print("排序前: "); + print(arr); + + doSort(arr); + + System.out.print("排序后: "); + print(arr); + } + + // 打印数组 + public static void print(int[] arr) { + if (arr == null) return; + + for(int i : arr) { + System.out.print(i + " "); + } + System.out.println(); + } +} diff --git a/codes/mimisn/Sort.class b/codes/mimisn/Sort.class new file mode 100644 index 0000000000000000000000000000000000000000..34b123a659ae8ac7e5b9ef5726c7490090115408 GIT binary patch literal 1233 zcmaJ>OKTHR7(F*LlbKA@X8N+)G#c$IowP|GTD31hMW|Fqhzg+yoi;;BZIYU%LIrnj zT=>9^xKfJX#*HqbsC22|(w#q`>Q7Mdb#5B0FHFd}-#zoqmvg@F&b zXaKvhM@PE}1yKVXa_yARWuRNGF%vzoP1GZ9pjWPa1`-C6lJD0spkq+LKbFmBOA`W0 ztmmwNdZdu?1VU5UymxXXH|rHoyR(aA{Fy?kP%H^(vFS;fS(_@kbLUUEOVtE5=VtQ) z+hWsG3+_cXx#;HSlc`cMo1Y(*`Pvf0l8zw(GgVkA&UweOvT#6_O~_kJL4E>Fth?#Z+WKQ>cEOvYY2Wmuz%P7ib-Co_*tEh5uQqQw&K8oV zq(_?e+}tQ-xl2o4J|oZ<`$tdyqN@IQV_R&p=RcQ?Qem^P0!^{M6Ir0KV&Qi|)cG$N z9F1NX&0?M>s-8znepIjsnuyKZMYsyCn*9Xg5d+Sd=&z6*p=>K-nYsauU*MAc5&?T% zy$AJ?G8Sf(S;M?Ku1rK^9OllpBMCdA&Lr+*2g702j#Rde#Aek|#;+*i!S^?9cUa>w ze9xhzpFnNU%J7HPnKJYSgJBtgGEDm^YOV;T-L|?~rpcq^k7EZM9+?8oE;D}>yU2j|8796!h_9#-!u||R{lw=dfL4U7me=?fKBg9} z&T=S4!%6E_(n%Xu$Vpp%tAnUptwh5L69XE-v=YP`oe;DdiM7@s zvCisurf9q&NP}@2#F;$QS78-U=Plq1Lx2Q7v1ovGY1= ，否则不稳定。 + if (arr[j] > arr[j + 1]) { + int temp = arr[j]; + arr[j] = arr[j + 1]; + arr[j + 1] = temp; + // 发生交换了，说明无序。 + isSorted = false; + } + } + + // 如果没有发生交换，则数组已经有序，结束冒泡。 + if (isSorted) return; + + // 把每一趟排序的结果也输出一下。 + System.out.print("第 "+ (i+1) + " 趟: "); + print(arr); + } + } + + public static void main(String[] args) { + int[] arr = {3,44,38,5,47,15,36,26,27,2,46,4,19,50,48}; + + System.out.print("排序前: "); + print(arr); + + doSort(arr); + + System.out.print("排序后: "); + print(arr); + } + + // 打印数组 + public static void print(int[] arr) { + if (arr == null) return; + + for(int i : arr) { + System.out.print(i + " "); + } + System.out.println(); + } +} -- Gitee From ad5bf502942dfbf739ca958de249eeaf3c62644e Mon Sep 17 00:00:00 2001 From: mimisn Date: Tue, 25 Oct 2022 20:39:15 +0800 Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=8E=92=E5=BA=8F?= =?UTF-8?q?=E4=BB=A3=E7=A0=81?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- codes/mimisn/9969120.java | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/codes/mimisn/9969120.java b/codes/mimisn/9969120.java index 6c9b8da2..a1a5da88 100644 --- a/codes/mimisn/9969120.java +++ b/codes/mimisn/9969120.java @@ -1,5 +1,5 @@ public class Sort { - public static void doSort(int[] arr) { + public static void bubbleSort(int[] arr) { // 空数组 或 只有一个元素的数组，则什么都不做。 if (arr == null || arr.length == 1) return; @@ -36,7 +36,7 @@ public class Sort { System.out.print("排序前: "); print(arr); - doSort(arr); + bubbleSort(arr); System.out.print("排序后: "); print(arr); -- Gitee