数据结构与算法 排序（冒泡，选择，插入）

// 
// main.c 
// BubbleSort 
// 
// Created by Wuyixin on 2017/6/2. 
// Copyright © 2017年 Coding365. All rights reserved. 
// 
 
#include <stdio.h> 
 
void bubbleSort(int a[],int n){ 
  int i,j; 
  for (i = 0; i < n - 1; i++) { 
    for (j = 0; j < n - i; j++) { 
      if (a[j] > a[j + 1]){ 
        int temp = a[j]; 
        a[j] = a[j + 1]; 
        a[j + 1] = temp; 
      } 
    } 
  } 
} 
 
int main(int argc, const char * argv[]) { 
   
   
  int a[] = {9,3,1,4,7,6,5,8,2}; 
  bubbleSort(a, 9); 
  int i = 0; 
  while (i < 9) 
    printf("%d ",a[i++]); 
   
  return 0; 
} 

// 
// main.c 
// SelectionSort 
// 
// Created by Wuyixin on 2017/6/2. 
// Copyright © 2017年 Coding365. All rights reserved. 
// 
 
#include <stdio.h> 
 
void selectionSort(int a[],int n){ 
  int i,j,min,temp; 
   
  for (i = 0; i < n; i++) { 
    min = i; 
    for (j = i + 1; j < n; j++) { 
      if (a[j] < a[min]) 
        min = j; 
    } 
    if (i != min){ 
      temp = a[i]; 
      a[i] = a[min]; 
      a[min] = temp; 
    } 
  } 
} 
 
int main(int argc, const char * argv[]) { 
  int a[] = {9,3,1,4,7,6,5,8,2}; 
  selectionSort(a, 9); 
  int i = 0; 
  while (i < 9) 
    printf("%d ",a[i++]); 
  return 0; 
} 

// 
// main.c 
// InsertionSort 
// 
// Created by Wuyixin on 2017/6/2. 
// Copyright © 2017年 Coding365. All rights reserved. 
// 
 
#include <stdio.h> 
 
void insertionSort(int a[],int n){ 
  int i,j,temp; 
  for (i = 1; i < n ; i++) { 
    temp = a[i]; 
    for (j = i; j > 0 && temp < a[j - 1]; j--) { 
      a[j] = a[j - 1]; 
    } 
    a[j] = temp; 
  } 
} 
 
int main(int argc, const char * argv[]) { 
  int a[] = {9,3,1,4,7,6,5,8,2}; 
  insertionSort(a, 9); 
  int i = 0; 
  while (i < 9) 
    printf("%d ",a[i++]); 
  return 0; 
}