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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#741887 | #9432. Permutation | happybob | RE | 1ms | 3560kb | C++20 | 1.6kb | 2024-11-13 15:25:40 | 2024-11-13 15:25:47 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
constexpr int N = 1e3 + 5;
int n;
array<int, N> ans;
mt19937_64 rnd(114514);
inline int query(int l, int x, int y)
{
cout << "0 ";
for (int i = 1; i <= l; i++) cout << x << " ";
for (int i = l + 1; i <= n; i++) cout << y << " ";
cout << "\n";
cout.flush();
int k;
cin >> k;
return k;
}
void solve(int l, int r, vector<int> s)
{
if (l > r) return;
if (l == r)
{
ans[l] = s.front();
return;
}
shuffle(s.begin(), s.end(), rnd);
int mid = l + r >> 1;
vector<int> lt, rt, tmp;
for (int i = 0; i < s.size(); i++)
{
if (i < s.size() - 1)
{
int x = query(mid, s[i], s[i + 1]);
if (x == 0)
{
lt.emplace_back(s[i + 1]);
rt.emplace_back(s[i]);
for (auto &i : tmp) rt.emplace_back(i);
tmp.clear(), tmp.shrink_to_fit();
}
else if (x == 2)
{
lt.emplace_back(s[i]);
rt.emplace_back(s[i + 1]);
for (auto &i : tmp) lt.emplace_back(i);
tmp.clear(), tmp.shrink_to_fit();
i++;
}
else
{
tmp.emplace_back(s[i]);
}
}
else
{
tmp.emplace_back(s[i]);
if (lt.size() < mid - l + 1)
{
for (auto &x : tmp) lt.emplace_back(x);
}
else
{
for (auto &x : tmp) rt.emplace_back(x);
}
}
}
solve(l, mid, lt);
solve(mid + 1, r, rt);
}
int main()
{
ios::sync_with_stdio(0), cin.tie(0);
cin >> n;
vector<int> v;
for (int i = 1; i <= n; i++) v.emplace_back(i);
solve(1, n, v);
cout << "1 ";
for (int i = 1; i <= n; i++) cout << ans[i] << " ";
cout << "\n";
cout.flush();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3560kb
input:
5 2 1 2 1 2 2 2
output:
0 4 4 4 1 1 0 2 2 2 3 3 0 3 3 3 5 5 0 3 3 4 4 4 0 4 4 2 2 2 0 3 4 4 4 4 0 1 1 1 1 5 1 3 4 2 1 5
result:
ok Accepted
Test #2:
score: -100
Runtime Error
input:
1000 1 1 1 1 2 1 0 1 2 1 0 1 1 1 2 1 0 1 2 2 0 1 1 2 1 1 1 0 2 1 1 1 2 1 1 0 2 0 2 1 1 1 2 0 1 1 1 2 1 1 0 1 2 1 1 2 0 1 2 1 1 2 0 2 1 0 2 0 1 2 0 2 0 2 1 1 2 0 1 2 0 1 1 1 2 2 2 1 1 2 0 2 0 2 0 2 1 0 1 2 0 1 1 1 1 1 2 0 1 1 2 2 0 1 2 2 1 1 1 1 0 2 2 1 0 1 1 2 1 1 1 1 1 1 2 1 0 1 1 2 2 2 1 1 1 1 1 0...
output:
0 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 562 56...