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一个关于字符指针的奇怪问题！************************************问题如下，先看两段代码：代码一：#include "stdio.h"void exchange(char *s1,char *s2);void main(){char *str="abc";exchang(str,str);}void exchange(char *s1,char *s2){char temp;temp=*s1;*s1=*s2;*s2=temp;}代码二：#include "stdio.h"void exchange(c 阅读全文
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归并排序的实现_by watson.long————————————————————————————#include "stdio.h"void mergesort(int a[],int r[],int left,int right);void merge(int a[],int b[],int left,int mid,int right);void main(int argc,char *argv[]){ int data[10]={9,1,2,4,6,10,23,5,3,56}; int result[10]={0}; int i=0; /*merge sort*/ 阅读全文
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小根堆的实现——————————————————#include "stdio.h"#include "stdlib.h"#include "string.h"/*minheap struct*/typedef struct hnode{ int heap[100]; int currentsize;}minheapnode,*minheap;/*minheap*/void creatheap(minheap *h,int a[], int n);void siftdown(minheap *h,int i,int m);void s 阅读全文