#935280 (C++17) No.2567 A_1 > A_2 > ... > A_N

• 問題: No.2567 A_1 > A_2 > ... > A_N
• ユーザー: pmankirai
• 提出日時: 2023-12-02 16:45:58
• 言語: C++17 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 33 ms / 2,000 ms
• コード長: 1,607 bytes
• コンパイル時間: 2,018 ms
• コンパイル使用メモリ: 194,908 KB
• 最終ジャッジ日時: 2025-02-18 05:39:26
• ジャッジサーバーID （参考情報）: judge2 / judge2

ファイルパターン	結果
sample	AC * 1
other	AC * 16

ソースコード

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#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define rep1(i, n) for (int i = 1; i <= (n); i++)
#define rrep(i, n) for (int i = n - 1; i >= 0; i--)
#define rrep1(i, n) for (int i = n; i >= 1; i--)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define eb emplace_back
#define fi first
#define se second
#define sz(x) (int)(x).size()
template <class T> using V = vector<T>;
template <class T> using VV = V<V<T>>;
typedef long long int ll;
void speedUpIO() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
}
template <class T> bool chmax(T &a, const T &b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
template <class T> bool chmin(T &a, const T &b) {
    if (b < a) {
        a = b;
        return true;
    }
    return false;
}
/*--------------------------------------------------*/
typedef pair<int, int> P;
const int INF = 1e9;
const ll LINF = 1e18;
const int MX = 100010;
void solve() {
    ll n, x;
    cin >> n >> x;
    ll d = x - n * (n + 1) / 2;
    if (d < 0) {
        cout << "-1\n";
        return;
    }
    V<ll> a(n);
    rep(i, n) a[i] = n - i;
    rep(i, n) a[i] += d / n;
    d %= n;
    rep(i, d) a[i]++;
    rep(i, n) {
        if (i) cout << " ";
        cout << a[i];
    }
    cout << "\n";
}
int main() {
    speedUpIO();
    int t = 1;
    cin >> t;
    while (t--) {
        solve();
        // cout << solve() << "\n";
        // cout << (solve() ? "YES" : "NO") << "\n";
        // cout << fixed << setprecision(15) << solve() << "\n";
    }
    return 0;
}
 
 
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