QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#226291#7108. Couleurreal_sigma_team#Compile Error//C++203.6kb2023-10-25 19:32:542023-10-25 19:32:54

Judging History

你现在查看的是最新测评结果

  • [2023-10-25 19:32:54]
  • 评测
  • [2023-10-25 19:32:54]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
using ll = long long;
#define int ll
const int SZ = 4e6;
const int N = 1e5 + 1;
int sz = 0;

int sm[SZ], L[SZ], R[SZ];
int a[N], pref[N];
ll ans[N];
int rigt[N];
set<int> st;
multiset<ll> vals;

int n;

void build(int t, int l = 0, int r = n - 1) {
    if (l == r) return;
    L[t] = sz++;
    R[t] = sz++;
    int m = (l + r) / 2;
    build(L[t], l, m);
    build(R[t], m + 1, r);
}

int update(int t, int k, int l = 0, int r = n - 1) {
    int u = sz++;
    L[u] = L[t];
    R[u] = R[t];
    sm[u] = sm[t] + 1;
    if (l != r) {
        int m = (l + r) / 2;
        if (k <= m) L[u] = update(L[u], k, l, m);
        else R[u] = update(R[u], k, m + 1, r);
    }
    return u;
}

int get(int t, int ql, int qr, int l = 0, int r = n - 1) {
    if (ql <= l && r <= qr) return sm[t];
    if (r < ql || qr < l) return 0;
    int m = (l + r) / 2;
    return get(L[t], ql, qr, l, m) + get(R[t], ql, qr, m + 1, r);
}

void solve() {
    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> a[i], --a[i];
    }
    pref[0] = 0;
    sz = 1;
    build(0);
    for (int i = 0; i < n; ++i) {
        pref[i + 1] = update(pref[i], a[i]);
    }
    st.insert(0);
    rigt[0] = n - 1;
    for (int i = 0; i < n; ++i) {
        ans[0] += get(pref[i], a[i] + 1, n - 1);
    }
    vals.clear();
    for (int i = 0; i < n; ++i) vals.insert(ans[i]);
    auto upd = [&](int k, ll x) -> void {
        vals.extract(ans[k]);
        vals.insert(ans[k] = x);
    };
    ll z = *prev(vals.end());
    for (int _ = 0; _ < n; ++_) {
        cout << z << ' ';
        int k_; cin >> k_;
        k_ ^= z;
        int k = k_ - 1;
        int l = *prev(st.upper_bound(k));
        int r = rigt[l];
        ll cur = ans[l];
        upd(k, 0);
        st.erase(l);
        if (k - l < r - k) {
            if (k != l) {
                ll cc = 0;
                for (int i = l; i < k; ++i) {
                    cc += get(pref[i], a[i] + 1, n - 1) - get(pref[l], a[i] + 1, n - 1);
                }
                upd(l, cc);
                rigt[l] = k - 1;
                st.insert(l);
            }
            if (k != r) {
                ll cc = cur;
                for (int i = l; i <= k; ++i) {
                    cc -= get(pref[r + 1], 0, a[i] - 1) - get(pref[i + 1], 0, a[i] - 1);
                }
                upd(k + 1, cc);
                rigt[k + 1] = r;
                st.insert(k + 1);
            }
        } else {
            if (k != r) {
                ll cc = 0;
                for (int i = k + 1; i <= r; ++i) {
                    cc += get(pref[i], a[i] + 1, n - 1) - get(pref[k + 1], a[i] + 1, n - 1);
                }
                upd(k + 1, cc);
                st.insert(k + 1);
                rigt[k + 1] = r;
            }
            if (k != l) {
                ll cc = cur;
                for (int i = r; i >= k; --i) {
                    cc -= get(pref[i], a[i] + 1, n - 1) - get(pref[l], a[i] + 1, n - 1);
                }
                upd(l, cc);
                st.insert(l);
                rigt[l] = k - 1;
            }
        }
        z = *prev(vals.end());
    }
    cout << '\n';
    st.clear();
    vals.clear();
    for (int i = 0; i < sz; ++i) {
        sm[i] = 0;
        L[i] = R[i] = -1;
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif
    int t;
    cin >> t;
    while (t--)
        solve();
}

Details

answer.code:6:13: error: ‘::main’ must return ‘int’
    6 | #define int ll
      |             ^~
answer.code:132:1: note: in expansion of macro ‘int’
  132 | int main() {
      | ^~~