void swap(int* a, int* b, int* c) { int first = *a; int third = *c; int second = *b; if (*b > first) { first = *b; } if (*c > first) { first = *c; } if (*a < third) { third = *a; } if (*b < third) { third = *b; } if (*a<first && *a>third) { second = *a; } if (*c<first && *c>third) { second = *b; } *c = first; *b = second; *a = third; } int main() { int a, b, c = 0; scanf("%d%d%d", &a, &b, &c); swap(&a, &b, &c); if (a + b <= c || a + c <= b || b + c <= a || a <= 0 || b <= 0 || c <= 0) printf("no"); else if ( a * a + b * b < c * c) printf("dunjiao"); else if (a * a + b * b == c * c) printf("zhijiao"); else printf("ruijiao"); return 0; } 该代码有何错误

该代码存在一个错误。在函数`swap`中，参数`int* c`应为`int* b`，参数`int* b`应为`int* c`。正确的代码如下：

void swap(int* a, int* b, int* c)
{
    int first = *a;
    int third = *c;
    int second = *b;
    if (*b > first)
    {
        first = *b;
    }
    if (*c > first)
    {
        first = *c;
    }
    
    if (*a < third)
    {
        third = *a;
    }
    if (*b < third)
    {
        third = *b;
    }
    
    if (*a<first && *a>third)
    {
        second = *a;
    }
    if (*c<first && *c>third)
    {
        second = *c;
    }
    *c = first;
    *b = second;
    *a = third;

}

int main()
{
    int a, b, c = 0;
    scanf("%d%d%d", &a, &b, &c);
    swap(&a, &c, &b);
    if (a + b <= c || a + c <= b || b + c <= a || a <= 0 || b <= 0 || c <= 0)
        printf("no");
    else if ( a * a + b * b < c * c)
        printf("dunjiao");
    else if (a * a + b * b == c * c)
        printf("zhijiao");
    else 
        printf("ruijiao");
    return 0;
}

请注意，我已经将函数`swap`中的参数进行了更正，并在`main`函数中调用了`swap(&a, &c, &b)`来正确交换`a`和`c`的值。