m0_48993355的博客

反转字符串的程序,比如”abcdefghi” -> “ihgfedcba”#include <stdio.h>#include <string.h>char *reverse(char *set){ int i,j; char temp; if(set == NULL) return NULL; for(i = 0,j = strlen(set) - 1; i < j; i++,j--) { temp = set[i]; set.

#include <stdio.h>#include <string.h>//strstr(str1,str2) 函数用于判断字符串str2是否是str1的子串。//如果是，则该函数返回str2在str1中首次出现的地址；否则，返回NULL。char *mystrstr(const char *set,const char *res){ int i,j,x; char *temp = set; if(set == NULL || res == NULL) .

#include <stdio.h>int mystrlen(const char *str){ int i; if(str == NULL) return -1; for(i = 0; str[i] != '\0'; i++); return i-1;}int main(void){ int res; char str[] = "hello world!"; res = mystrlen(str); printf("------res = %d---.

#include <stdio.h>#include <string.h>int mystrcpy(char *str,const char *res){ int i; if(str == NULL || res == NULL) { return -1; } for(i = 0; res[i] != '\0'; i++) str[i] = res[i]; str[i] = res[i]; return 0;}int main(void).

#include <stdio.h>int mystrcmp(const char * set,const char * res);int main(void){ int x; char set[] = "he"; char res[] = "hello"; x = mystrcmp(set,res); printf("x = %d\n",x); return 0;}int mystrcmp(const char * set,const char * res).

#include <stdio.h>#include <string.h>int mystrcpy(char *str,const char *res){ int i; if(str == NULL || res == NULL) { return -1; } for(i = 0; res[i] != '\0'; i++) str[i] = res[i]; str[i] = res[i]; return 0;}int main(void).

#include <stdio.h>//快速排序void Quick_Sort(int arr[],int head,int tail){ if(head > tail) return ; int i,j,temp,res; i = head; j = tail; temp = arr[head]; while(i != j) { while(arr[j] >= t...

今日分享–冒泡排序

#include <string.h>1、char *strcpy(char *dest,const char *src)：从src指针指向的内存中拷贝\0及以前的数据到dest指针指向的内存中，返回值为第一参数记录的地址2、char *strncpy(char *dest,const char *src,size_t n)：从src指针指向的内存中拷贝n个字节的数据到dest指针指向的内存中，返回值为第一参数记录的地址3、size_t strlen(const char *s)

#include <stdio.h>//选择排序：把大值和小值往两边摞动int main(void){ int x, i, j, temp, min, max, right, left = 0; int arr[] = {5,61,4,20,25}; printf("请选择升序or降序排序（1表示升序，2表示降序）："); scanf("%d",&x); right = sizeof(arr) / sizeof(int) - 1;...

intmain(){char*buf="zhangsan man 21"；chara[9],b[4];intc;sscanf(buf,"%s%s%d",a,b,&c);printf("%s\n%s\n%d\n",a,b,c);return0;}如：char *buf = "zhangsan-man-21";则：sscanf(buf,"%s-%s...