The prototype of the function is: void myjoin(char *s,char *t); its function is to connect the t string to the back of the s string. The main function for testing is shown below, please make the function myjoin.

The prototype of the function is: void myjoin(char *s,char *t);, its function is to connect the t string to the back of the s string. The main function for testing is shown below, please make the function myjoin.

#include <stdio.h>
#include <string.h>
void main()
{
    
    
	void myjoin(char *s,char *t);
	char s1[100],s2[100];
	gets(s1);
	gets(s2);
	myjoin(s1,s2);
	puts(s1);
}

The complete code is as follows:

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

void myjoin(char *s,const char *t)  
{
    
    
	int i,j;                
	for(i=0;s[i];i++)
	{
    
    
		;
	}
	for(j=0;t[j];j++,i++)
	{
    
    
		s[i]=t[j]; 
	}	              
	s[i]='\0';                  
}


void main()
{
    
    
	char s1[100],s2[100];
	gets(s1);
	gets(s2);
	myjoin(s1,s2);
	puts(s1);
}

The result of the operation is shown in the figure:

Caicai's code, I hope it can help you!