比赛 |
2024暑期C班集训1 |
评测结果 |
AAAAAAWWWWTTTTTTTTTW |
题目名称 |
艾姆易艾克斯 |
最终得分 |
30 |
用户昵称 |
liuyiche |
运行时间 |
9.008 s |
代码语言 |
C++ |
内存使用 |
3.52 MiB |
提交时间 |
2024-07-01 11:12:41 |
显示代码纯文本
#include <bits/stdc++.h>
using namespace std;
int n, ans = 0, Min = 1e9;
int a[100010];
int b[100010];
int mod = 1e9+7;
bool tp = true;
int m[100005];
inline int qpow(int x, int p)
{
if(p == 0)
return 1;
int tmp = qpow(x,p/2);
tmp %= mod;
tmp *= tmp;
tmp %= mod;
if(p % 2 != 0)
tmp *= x;
tmp %= mod;
return tmp;
}
inline void dfs(int step)
{
if(step == n+1)
{
int tmp;
for(int i = 0; i <= 100002; ++i)
if(m[i] == 0)
{
tmp = i;
break;
}
if(tmp == Min)
ans++, ans %= mod;
else if(tmp < Min)
Min = tmp, ans = 1;
return;
}
dfs(step+1);
if(a[step] <= 100000)
m[a[step]]--;
if(b[step] <= 100000)
m[b[step]]++;
dfs(step+1);
if(a[step] <= 100000)
m[a[step]]++;
if(b[step] <= 100000)
m[b[step]]--;
}
int main()
{
freopen("Mex.in", "r", stdin);
freopen("Mex.out", "w", stdout);
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
cin >> n;
for(int i = 1; i <= n; ++i)
cin >> a[i];
for(int i = 1; i <= n; ++i)
{
cin >> b[i];
if(b[i] != a[i])
tp = false;
}
for(int i = 1; i <= n; ++i)
if(a[i] <= 100000)
m[a[i]]++;
if(tp == true)
{
for(int i = 0; i <= 100002; ++i)
if(m[i] == 0)
{
cout << i << " ";
break;
}
cout << qpow(2,n);
return 0;
}
dfs(1);
cout << Min << " " << ans;
return 0;
}