c语言用三周目编猜拳游戏怎么编辑

#include
#include
#include

int main(void)
{
int c, p;
srand((unsigned)time(NULL));
c = rand() % 3;
printf("你出的是什么？\n石头--0\n剪子--1\n布--2\n");
p = scanf_s("%d", &p);
printf("电脑出的是%d", c);
char winner;
int r = p - c;
printf("winner=%c\n",(r==2)||(r==-1) ? p : c);
}