求四个数的最大值与最小值（只用四个if语句）

# include<> int main(void) { int a, b, c, d,m1,m2,n1,n2,m,n; printf("enter 4 num:"); scanf_s("%d%d%d%d", &a, &b, &c, &d); if (a > b) m1 = a, n1 = b; else m1 = b, n1 = a; if (c > d) m2 = c, n2 = d; else m2 = d, n2 = c; if (m1 > m2) m = m1; else m = m2; if (n1 > n2) n = n2; else n = n1; printf("largest is :%d", m); printf("smallest is :%d", n); }