C语言填空题1程序填空,不要改变与输入输出有关的语句.输入一个正整数 repeat (0

#include
#include
int main(void)
{
char sx[80],longest[80];
int i,n;
int repeat,ri;
scanf("%d",&repeat);
for(ri = 1; ri = strlen(longest) ) strcpy(longest,sx);
scanf("%s",sx);}
printf("The longest is:%s\n",longest);
}
}