I 体操队形: 题目很简单,代码很短,三行过 #include<bits/stdc++.h> int a[12],p,i,n, ans,th[12] = { 0,1,2,3,4,5,6,7,8,9,10}; int main(){ for (scanf("%d",&n),i = 1; i <= n; scanf("%d",a+i),i++); do for (i = 1,p=1; i <= n;th[i] > th[a[i]]?p = 0:1,i++); while (p==1?ans++:1,std::next_permutati...