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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#733148 | #7738. Equivalent Rewriting | enar# | WA | 0ms | 3816kb | C++20 | 2.1kb | 2024-11-10 17:26:10 | 2024-11-10 17:26:11 |
Judging History
answer
#include <bits/stdc++.h>
void solve() {
int n, m;
std::cin >> n >> m;
std::set<int> num;
std::vector<int> cnt(m + 1);
std::vector<std::set<int>> p(n);
for (int i = 0; i < n; ++i) {
int l;
std::cin >> l;
for (int j = 0; j < l; ++j) {
int x;
std::cin >> x;
p[i].insert(x);
num.insert(x);
cnt[x]++;
}
}
std::vector<int> ans(n);
std::iota(ans.begin(), ans.end(), 1);
for (int i = 1; i < n; ++i) {
bool flag = false;
for (const auto &u : p[i - 1]) {
if (p[i].contains(u)) {
flag = true;
}
}
if (!flag) {
std::cout << "Yes\n";
std::swap(ans[i], ans[i - 1]);
for (int j = 0; j < n; ++j) {
std::cout << ans[j] << " \n"[j == n - 1];
}
return;
}
}
for (int i = 1; i <= m; ++i) {
if (cnt[i] == 1) {
num.erase(i);
}
}
std::vector<int> ctn;
std::vector<int> vis(n);
for (int i = n - 1; i >= 0; --i) {
for (const auto &u : p[i]) {
if (num.contains(u)) {
if (!vis[i]) ctn.push_back(i);
num.erase(u);
vis[i] = true;
}
}
if (num.size() == 0) {
if (n - ctn.size() >= 2) {
std::cout << "Yes\n";
for (int j = n - 1; j >= 0; --j) {
if (!vis[j]) {
std::cout << j + 1 << " ";
}
}
for (const auto &u : ctn) {
std::cout << u + 1 << " ";
}
std::cout << "\n";
return;
}
break;
}
}
std::cout << "No\n";
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int T;
std::cin >> T;
while (T--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3816kb
input:
3 3 6 3 3 1 5 2 5 3 2 2 6 2 3 3 1 3 2 2 3 1 1 3 2 2 1
output:
Yes 1 3 2 No No
result:
ok OK. (3 test cases)
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3528kb
input:
1 10 5 2 2 4 4 1 3 4 2 1 2 3 2 1 4 4 5 2 4 3 3 2 5 4 3 5 4 2 3 1 3 2 5 1 4 2 3 5 1 4
output:
Yes 8 7 6 5 4 3 2 1 10 9
result:
wrong answer two transactions are not equivalent. (test case 1)