Exercise 8-8 moving letters (10 points)

This problem requires writing functions , The first... Of the input string 3 Move characters to the last .

Function interface definition ：

void Shift( char s[] );

among char s[] Is the string passed in by the user , Ensure that the length of the title is not less than 3; function Shift The string transformed as required must still exist s[] in .

Sample referee test procedure ：

#include <stdio.h>
#include <string.h>

#define MAXS 10

void Shift( char s[] );

void GetString( char s[] ); /* Implementation details are not shown here */

int main()
{
    char s[MAXS];

    GetString(s);
    Shift(s);
    printf("%s\n", s);

    return 0; 
}

/* Your code will be embedded here */

sample input ：

abcdef

sample output ：

defabc

void Shift( char s[] ){
    char ch[3];
    int i,j,count=0;
    for(i=0;i<3;i++){      // Store the first three characters 
        ch[i]=s[i];
    }
    for(i=0;i<strlen(s)-3;i++){  // Move the following characters forward 
        count++;
        s[i]=s[i+3];
    }
    for(i=count,j=0;i<MAXS;i++,j++){   // Move the first three characters to the last 
        s[i]=ch[j];
    }
}