合并两个字符集合为一个新集合,每个字符串在新集合中仅出现一次,函数返回新集合中字符串。 如： s1集合{“while”,”for”,”switch”,”if”,”continue”

#include <stdio.h>
#include <string.h>
int main()
{
char s1[5][10]={"while","for","switch","if","continue"};
char s2[6][10]={"for","case","do","else","char","switch"};
char s[10][10];
int i,j,k;
    
//字符串拷贝
for(i = 0;i < 5;i++)
strcpy(s[i],s1[i]);

for(k = 0;k < 6;k++)
{
for(j = 0;j < 5;j++)
{
//字符串比较前两个字节
if(strncmp(s2[k],s1[j],2) == 0)
{
//将相同的字符串赋0值
memset(s2[k],0,10 * sizeof(char));
}
}
}
k = 0;


//跳过0值
if(!(s2[k]))
{
k++;
}
else
while(k < 6)
{
strcpy(s[i],s2[k]);
k++;
i++;
}


for(i = 0;i < 10;i++)
{
printf("%s   ",s[i]);
}


printf("\n");






    return 0;
}