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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#163543#7108. CouleurluanmengleiRE 0ms0kbC++173.0kb2023-09-04 10:29:472023-09-04 10:29:48

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你现在查看的是最新测评结果

  • [2023-09-04 10:29:48]
  • 评测
  • 测评结果:RE
  • 用时:0ms
  • 内存:0kb
  • [2023-09-04 10:29:47]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

void debug(const char *msg, ...) {
#ifdef CLESIP
	va_list args;
	va_start(args, msg);
	static char res[512];
	vsprintf(res, msg, args);
	cerr << "[DEBUG] " << res << "\n";
	va_end(args);
#endif
}

using i64 = long long;
const int N = 1e5 + 10;
const int SEG_SIZE = N * 120;
int n, a[N], cnt, rt[N], p[N];
map<int, int> seg;
multiset<i64> ans;

struct Node {
	int cnt, tag, lc, rc, min, max;
	i64 sum;
} t[SEG_SIZE];

void pull(int x) {
	t[x].sum = 0, t[x].cnt = 0, t[x].min = 1e9, t[x].max = -1e9;
	if (t[x].lc) t[x].sum += t[t[x].lc].sum, t[x].cnt += t[t[x].lc].cnt, t[x].min = min(t[t[x].lc].min, t[x].min), t[x].max = max(t[t[x].lc].max, t[x].max);
	if (t[x].rc) t[x].sum += t[t[x].rc].sum, t[x].cnt += t[t[x].rc].cnt, t[x].min = min(t[t[x].rc].min, t[x].min), t[x].max = max(t[t[x].rc].max, t[x].max);
}

void apply(int x, int k) { t[x].sum += 1LL * t[x].cnt * k, t[x].tag += k; }

void push(int x) {
	if (t[x].tag) {
		if (t[x].lc) apply(t[x].lc, t[x].tag);
		if (t[x].rc) apply(t[x].rc, t[x].tag);
		t[x].tag = 0;
	}
}

void add(int &x, int l, int r, int v, int p, int sum) {
	if (!x) x = ++ cnt;
	if (l == r) {
		t[x] = { 1, 0, 0, 0, p, p, sum };
		return;
	}
	int mid = (l + r) >> 1;
	if (v <= mid) add(t[x].lc, l, mid, v, p, (t[x].rc ? t[t[x].rc].cnt : 0) + sum);
	else add(t[x].rc, mid + 1, r, v, p, sum);
	pull(x);
}

void extract(int &x, int &y, int k) {
	if (!y) {
		x = 0;
		return;
	}
	if (t[y].max <= k) {
		x = y;
		y = 0;
		return;
	}
	if (t[y].min > k) {
		x = 0;
		return;
	}
	push(y);
	x = ++ cnt;
	extract(t[x].lc, t[y].lc, k);
	extract(t[x].rc, t[y].rc, k);
	apply(t[y].lc, -t[t[x].rc].cnt);
	pull(x), pull(y);
}

void solve() {
	// debug("new test case");
	seg.clear(), ans.clear(), cnt = 0;

	cin >> n;
	for (int i = 1; i <= n; i ++) rt[i] = 0;
	for (int i = 1; i <= n; i ++) cin >> a[i], p[i] = i;
	sort(p + 1, p + 1 + n, [&](int x, int y) { return a[x] == a[y] ? x < y : a[x] < a[y]; });
	for (int i = 1; i <= n; i ++) a[p[i]] = i;

	for (int i = 1; i <= n; i ++)
		add(rt[1], 1, n, a[i], i, 0);
	seg[1] = n, ans.insert(t[rt[1]].sum);

	int q = n, lst = 0;
	assert(false);
	for (int i = 1; i <= q; i ++) {
		assert(!ans.empty());
		cout << (lst = *prev(ans.end())) << " \n"[i == q];
		int p; cin >> p;
		p ^= lst;
		if (p < 0 || p > n) continue;
		auto iter = prev(seg.upper_bound(p));
		auto [l, r] = *iter;
		seg.erase(iter);

		int rtl = 0, rtr = rt[l], tmp = 0;
		ans.extract(t[rt[l]].sum);
		rt[l] = 0;
		extract(rtl, rtr, p - 1);
		extract(tmp, rtr, p);
		
		if (rtl) {
			rt[l] = rtl;
			seg[l] = p - 1;
			ans.insert(t[rt[l]].sum);
		}
		if (rtr) {
			rt[p + 1] = rtr;
			seg[p + 1] = r;
			ans.insert(t[rt[p + 1]].sum);
		}
	}

	for (int i = 1; i <= cnt; i ++) {
		t[i] = { 0, 0, 0, 0, (int) 1e9, (int) -1e9, 0 };
	}
}

int main() {
	ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	int tt; cin >> tt;
	while (tt --) solve();
	return 0;
}

Details

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Test #1:

score: 0
Dangerous Syscalls

input:

3
5
4 3 1 1 1
5 4 5 3 1
10
9 7 1 4 7 8 5 7 4 8
21 8 15 5 9 2 4 5 10 6
15
4 8 8 1 12 1 10 14 7 14 2 9 13 10 3
37 19 23 15 7 2 10 15 2 13 4 5 8 7 10

output:


result: