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ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#741324 | #9432. Permutation | forgotmyhandle | WA | 0ms | 3468kb | C++14 | 2.1kb | 2024-11-13 14:06:05 | 2024-11-13 14:06:06 |
Judging History
answer
#include <iostream>
#include <random>
#include <vector>
using namespace std;
random_device rd;
mt19937 mtrand(rd());
int n;
int ans[1005];
int f[1005];
void ini(int x) { for (; x; --x) f[x] = x; }
int getf(int x) { return (f[x] == x ? x : (f[x] = getf(f[x]))); }
int bel[1005];
int ask(int k, int x, int y) {
cout << "0 ";
for (int i = 1; i <= k; i++) cout << x << " ";
for (int i = 1; i <= n - k; i++) cout << y << " ";
cout << endl;
cin >> k;
return k;
}
void Solve(int l, int r, vector<int> S) {
// cout << l << " " << r << "\n";
// for (int i : S) cout << i << " ";
// cout << endl;
if (l == r) {
ans[S[0]] = l;
return;
}
int mid = (l + r) >> 1;
ini(n);
vector<int> v[2], tmp = S;
int c0 = 0, c1 = 0;
while (S.size()) {
int x, y;
if ((int)S.size() == 1) {
x = S[0];
if (!c0 || !c1)
bel[x] = !!c0;
else
bel[x] = !ask(mid, x, c0);
break;
}
x = mtrand() % S.size(), y = mtrand() % ((int)S.size() - 1);
y += (y >= x);
int t = ask(mid, S[x], S[y]);
if (t == 0)
bel[c1 = S[x]] = 1, bel[c0 = S[y]] = 0, S.erase(S.begin() + max(x, y)), S.erase(S.begin() + min(x, y));
else if (t == 2)
bel[c0 = S[x]] = 0, bel[c1 = S[y]] = 1, S.erase(S.begin() + max(x, y)), S.erase(S.begin() + min(x, y));
else {
f[getf(S[x])] = S[y];
S.erase(S.begin() + x);
}
// cout << "ASDf\n";
// for (auto s : S) cout << s << " ";
// cout << endl;
}
// for (auto x : tmp) cout << x << " " << getf(x) << " " << bel[getf(x)] << " x" << endl;
for (auto x : tmp) v[bel[getf(x)]].emplace_back(x);
Solve(l, mid, v[0]);
Solve(mid + 1, r, v[1]);
}
int main() {
vector<int> v;
cin >> n;
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 << endl;
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3468kb
input:
5 0 0 1 1 2 2 0
output:
0 1 1 1 2 2 0 5 5 5 3 3 0 4 4 4 3 3 0 3 3 4 4 4 0 4 4 2 2 2 0 3 4 4 4 4 0 5 5 5 5 1 1 4 3 1 2 5
result:
wrong answer Wrong Anser