121 lines
2 KiB
C++
121 lines
2 KiB
C++
#include <bits/stdc++.h>
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// https://codeforces.com/blog/entry/96344
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#pragma GCC optimize("O2,unroll-loops")
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#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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using namespace std;
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template <typename... Args>
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void dbg(std::string const &str, Args &&...args) {
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std::cout << std::vformat(str,
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// make_format_args binds arguments to const
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std::make_format_args(args...));
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}
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template <typename T>
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void dbg(T const &t) {
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std::cout << t;
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}
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template <std::ranges::range T>
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void dbgln(T const &t) {
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if constexpr (std::is_convertible_v<T, char const *>) {
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std::cout << t << '\n';
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} else {
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for (auto const &e : t) {
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std::cout << e << ' ';
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}
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std::cout << '\n';
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}
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}
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template <typename... Args>
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void dbgln(std::string const &str, Args &&...args) {
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dbg(str, std::forward<Args>(args)...);
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cout << '\n';
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}
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template <typename T>
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void dbgln(T const &t) {
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dbg("{}\n", t);
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}
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void println() {
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std::cout << '\n';
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}
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template <typename T>
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constexpr auto MIN = std::numeric_limits<T>::min();
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template <typename T>
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constexpr auto MAX = std::numeric_limits<T>::min();
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#define ff first
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#define ss second
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#define eb emplace_back
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#define ll long long
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#define ld long double
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#define vec vector
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#define all(x) (x).begin(), (x).end()
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#define rall(x) (r).rbegin(), (x).rend()
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#define sz(x) static_cast<int>((x).size())
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#define FOR(a, b, c) for (int a = b; a < c; ++a)
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std::random_device rd;
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std::mt19937 gen(rd());
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void YES() {
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cout << "YES\n";
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}
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void NO() {
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cout << "NO\n";
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}
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void solve() {
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int n;
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cin >> n;
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int maxf = 0;
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vector<int> a(n + 1), ans(n);
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FOR(i, 0, n) {
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int x;
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cin >> x;
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if (!a[x]) {
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a[x] = 1;
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ans[i] = x;
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}
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}
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queue<int> q;
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FOR(i, 1, n + 1)
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if (!a[i])
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q.push(i);
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FOR(i, 0, n) {
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if (!ans[i]) {
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ans[i] = q.front();
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q.pop();
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}
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}
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FOR(i, 0, n)
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cout << ans[i] << ' ';
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cout << '\n';
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}
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int main() {
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cin.tie(nullptr)->sync_with_stdio(false);
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int t = 1;
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cin >> t;
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while (t--) {
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solve();
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}
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return 0;
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}
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