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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#85475#5657. Hungry Cowzlt9.090909 3ms13088kbC++143.6kb2023-03-07 19:46:082023-03-07 19:46:11

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-07 19:46:11]
  • 评测
  • 测评结果:9.090909
  • 用时:3ms
  • 内存:13088kb
  • [2023-03-07 19:46:08]
  • 提交

answer

// Problem: P9130 [USACO23FEB] Hungry Cow P
// Contest: Luogu
// URL: https://www.luogu.com.cn/problem/P9130
// Memory Limit: 512 MB
// Time Limit: 6000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

#include <bits/stdc++.h>
#define f(l, r) (((l + r) % mod) * ((r - l + 1) % mod) * inv2 % mod)
#define pb emplace_back
#define fst first
#define scd second
#define mems(a, x) memset((a), (x), sizeof(a))

using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ldb;
typedef pair<ll, ll> pii;

const int maxn = 100100;
const ll N = (ll)1.2e15;
const ll mod = 1000000007;
const ll inv2 = (mod + 1) / 2;

bool test1;
int n, ls[maxn * 150], rs[maxn * 150], ntot, rt[maxn];
ll ans[maxn];
vector<pii> vc[maxn << 2];
struct node {
	ll val, cnt;
	bool tag;
} tree[maxn * 150];
bool test2;

void pushup(int x, ll l, ll r) {
	if (tree[x].tag) {
		tree[x].cnt = r - l + 1;
		tree[x].val = f(l, r);
	} else {
		tree[x].cnt = tree[ls[x]].cnt + tree[rs[x]].cnt;
		tree[x].val = (tree[ls[x]].val + tree[rs[x]].val) % mod;
	}
}

int update(int rt, ll l, ll r, ll ql, ll qr) {
	int u = ++ntot;
	ls[u] = ls[rt];
	rs[u] = rs[rt];
	tree[u] = tree[rt];
	if (ql <= l && r <= qr) {
		tree[u].tag = 1;
		tree[u].cnt = r - l + 1;
		tree[u].val = f(l, r);
		assert(tree[u].val >= 0);
		return u;
	}
	ll mid = (l + r) >> 1;
	if (ql <= mid) {
		ls[u] = update(ls[u], l, mid, ql, qr);
	}
	if (qr > mid) {
		rs[u] = update(rs[u], mid + 1, r, ql, qr);
	}
	pushup(u, l, r);
	return u;
}

ll query(int rt, ll l, ll r, ll ql, ll qr, bool fl = 0) {
	if (!rt) {
		return fl ? min(qr, r) - max(ql, l) + 1 : 0;
	}
	fl |= tree[rt].tag;
	if (ql <= l && r <= qr) {
		return (fl ? r - l + 1 : tree[rt].cnt);
	}
	ll mid = (l + r) >> 1, res = 0;
	if (ql <= mid) {
		res += query(ls[rt], l, mid, ql, qr, fl);
	}
	if (qr > mid) {
		res += query(rs[rt], mid + 1, r, ql, qr, fl);
	}
	return res;
}

ll find(int rt, ll l, ll r, ll x, bool fl = 0) {
	if (!rt) {
		return l + x - 1;
	}
	if (l == r) {
		return l;
	}
	fl |= tree[rt].tag;
	ll mid = (l + r) >> 1;
	ll tmp = (fl ? 0 : mid - l + 1 - tree[ls[rt]].cnt);
	return x <= tmp ? find(ls[rt], l, mid, x, fl) : find(rs[rt], mid + 1, r, x - tmp, fl);
}

void insert(int rt, int l, int r, int ql, int qr, pii x) {
	if (ql <= l && r <= qr) {
		vc[rt].pb(x);
		return;
	}
	int mid = (l + r) >> 1;
	if (ql <= mid) {
		insert(rt << 1, l, mid, ql, qr, x);
	}
	if (qr > mid) {
		insert(rt << 1 | 1, mid + 1, r, ql, qr, x);
	}
}

void dfs(int u, int l, int r) {
	int lsttot = ntot;
	rt[u] = rt[u >> 1];
	for (pii p : vc[u]) {
		ll pos = find(rt[u], 1, N, p.scd + p.fst - 1 - query(rt[u], 1, N, 1, p.fst - 1));
		rt[u] = update(rt[u], 1, N, p.fst, pos);
	}
	if (l == r) {
		ans[l] = tree[rt[u]].val;
	} else {
		int mid = (l + r) >> 1;
		dfs(u << 1, l, mid);
		dfs(u << 1 | 1, mid + 1, r);
	}
	for (int i = lsttot + 1; i <= ntot; ++i) {
		ls[i] = rs[i] = 0;
		tree[i].val = tree[i].cnt = tree[i].tag = 0;
	}
	ntot = lsttot;
}

void solve() {
	scanf("%d", &n);
	map<ll, pii> mp;
	for (int i = 1; i <= n; ++i) {
		ll x, y;
		scanf("%lld%lld", &x, &y);
		if (mp.find(x) != mp.end()) {
			insert(1, 1, n, mp[x].scd, i - 1, make_pair(x, mp[x].fst));
		}
		mp[x] = make_pair(y, i);
	}
	for (auto p : mp) {
		insert(1, 1, n, p.scd.scd, n, make_pair(p.fst, p.scd.fst));
	}
	dfs(1, 1, n);
	for (int i = 1; i <= n; ++i) {
		printf("%lld\n", ans[i]);
	}
}

int main() {
	fprintf(stderr, "%.2lf MB\n", (&test2 - &test1) / 1048576.);
	int T = 1;
	// scanf("%d", &T);
	while (T--) {
		solve();
	}
	return 0;
}

详细

Test #1:

score: 4.54545
Accepted
time: 1ms
memory: 13088kb

input:

3
4 3
1 5
1 2

output:

15
36
18

result:

ok 3 number(s): "15 36 18"

Test #2:

score: 4.54545
Accepted
time: 3ms
memory: 13088kb

input:

9
1 89
30 7
101 26
1 24
5 1
60 4
5 10
101 0
1 200

output:

4005
4656
7607
3482
3507
3753
4058
1107
24531

result:

ok 9 numbers

Test #3:

score: 0
Dangerous Syscalls

input:

5000
1 255364995
414918035 212844
1 112266691
321122438 191414
1 277615842
848755093 61676
1 432591689
892259443 53755
1 263753018
173404455 173565
1 178341924
878941367 221276
1 65332960
439468128 240741
1 812238377
191076090 108732
1 180383041
927440330 112995
1 595696140
579818784 85614
1 5057816...

output:


result:


Test #4:

score: 0
Dangerous Syscalls

input:

100000
1 500000000
1000000001 500000000
2000000001 500000000
3000000001 500000000
4000000001 500000000
5000000001 500000000
6000000001 500000000
7000000001 500000000
8000000001 500000000
9000000001 500000000
10000000001 500000000
11000000001 500000000
12000000001 500000000
13000000001 500000000
1400...

output:


result:


Test #5:

score: 0
Dangerous Syscalls

input:

100000
49998999950002 500000000
49997999950003 500000000
49996999950004 500000000
49995999950005 500000000
49994999950006 500000000
49993999950007 500000000
49992999950008 500000000
49991999950009 500000000
49990999950010 500000000
49989999950011 500000000
49988999950012 500000000
49987999950013 500...

output:


result:


Test #6:

score: 0
Dangerous Syscalls

input:

100000
92303348842417 121458
92270522994821 852054850
93765096269940 752161890
97779083359973 984327853
90030769679569 439157849
99462493683485 45660
95578441605501 614317411
92236129196525 474149928
96065411631989 429943696
90394247621798 382840249
89263934750729 791122796
93577089467158 99679481
9...

output:


result:


Test #7:

score: 0
Dangerous Syscalls

input:

100000
98001410246890 641673458
94816407430628 495030536
95979591652947 43208
95979591652947 183686
97163521776290 904784415
91640049592559 875129980
95914835187460 844802426
94846379383324 974270031
99639652388956 311664277
99298294827771 913614463
99476866913169 221766107
97248342663994 669489020
...

output:


result:


Test #8:

score: 0
Dangerous Syscalls

input:

100000
97338601145206 191999210
97657969728741 875988993
92559675348135 8552565
99354409480201 960853995
93648768326445 343671323
97400841247229 104463842
98844341051398 508718383
96144328794112 187050711
98030257583732 365513
92378049740181 852725611
98301676983212 360931360
99458914124366 80234576...

output:


result:


Test #9:

score: 0
Dangerous Syscalls

input:

100000
96119987448606 658315028
98644701118435 280992389
98180676447908 56168
99822794299596 237183170
94655838918825 563695131
95744558879343 686204820
93739311062176 263266841
97630990881452 96901680
98683433984282 380708175
98141920320037 147598812
98095513966598 814629225
97882900659205 55097258...

output:


result:


Test #10:

score: 0
Dangerous Syscalls

input:

100000
98169641631056 170946511
99452522210742 393032132
98797460964704 393706377
98747209012224 529219651
99152468691953 362194103
99410753036475 215295
97096873124809 1315725
96106202009957 124516158
95176405230280 853965254
99359463136784 622839995
96635771520630 550456203
96368792029394 93630831...

output:


result:


Test #11:

score: 0
Dangerous Syscalls

input:

100000
97499080763005 475255826
97499083333242 9347
97499080763005 395470349
97499924236501 4654
97499080763005 148122052
97499213182916 2365
97499080763005 544025506
97499777050346 9912
97499080763005 41736833
97499401163067 12607
97499080763005 127843558
97499125181305 7144
97499080763005 13152858...

output:


result:


Test #12:

score: 0
Dangerous Syscalls

input:

100000
98999026537234 929244389
98999182418499 5182
98999026537234 774643967
98999646433835 17857
98999026537234 760743518
98999980664456 7597
98999026537234 573421161
98999090975969 6621
98999026537234 95191521
98999947586610 17798
98999026537234 953104244
98999116462517 15643
98999026537234 100617...

output:


result:


Test #13:

score: 0
Dangerous Syscalls

input:

100000
99499024212061 630391525
99499061152079 3864
99499024212061 16505706
99499878275777 4812
99499024212061 776185964
99499757280269 12059
99499024212061 356565635
99499399237611 8902
99499024212061 972528120
99499256994518 9171
99499024212061 419476867
99499909552451 17146
99499024212061 6767939...

output:


result:


Test #14:

score: 0
Dangerous Syscalls

input:

99999
10490328589436 1000000000
13762508396295 1000000000
40632115714511 1000000000
32834989282081 1000000000
29091918306598 1000000000
24352818172350 1000000000
23447797352860 1000000000
38073075086135 1000000000
14288530509239 1000000000
36463049009868 1000000000
10562334120356 1000000000
34490016...

output:


result:


Test #15:

score: 0
Dangerous Syscalls

input:

99999
61585049539216 1000000000
58981995705940 1000000000
44247484521936 1000000000
70916218483207 1000000000
47696673638497 1000000000
60781033156530 1000000000
55859922511212 1000000000
59143999312357 1000000000
57175954090596 1000000000
71328224891428 1000000000
46047599292678 1000000000
47510666...

output:


result:


Test #16:

score: 0
Dangerous Syscalls

input:

99999
21219982576425 1000000000
42260400232639 1000000000
26412110792985 1000000000
11035481121988 1000000000
13219690258669 1000000000
19550933913223 1000000000
32679237390903 1000000000
15679803374289 1000000000
23896051833122 1000000000
20099950455987 1000000000
14778766729432 1000000000
21547991...

output:


result:


Test #17:

score: 0
Dangerous Syscalls

input:

99999
28503598869279 1000000000
32397709666940 1000000000
25833502058723 1000000000
38020841213328 1000000000
54560138759501 1000000000
42230929758874 1000000000
28972613620824 1000000000
28498598787317 1000000000
54070131397843 1000000000
22084267818956 1000000000
37776835952805 1000000000
44465973...

output:


result:


Test #18:

score: 0
Dangerous Syscalls

input:

99999
18175781548542 1000000000
40883228277118 1000000000
33828113807745 1000000000
17817771477758 1000000000
22749897023579 1000000000
18015777423352 1000000000
28920025506062 1000000000
18799798298070 1000000000
27979006765970 1000000000
17103749421004 1000000000
24329932307643 1000000000
29798042...

output:


result:


Test #19:

score: 0
Dangerous Syscalls

input:

99999
13631696063382 1000000000
19095823575649 1000000000
18048800926387 1000000000
17060779354093 1000000000
15768748767399 1000000000
30886037572930 1000000000
26814970558482 1000000000
8165534157289 1000000000
27914989206121 1000000000
34170089895536 1000000000
27764986366439 1000000000
145187181...

output:


result:


Test #20:

score: 0
Dangerous Syscalls

input:

99999
71091006018203 1000000000
42267334298998 1000000000
53421686894439 1000000000
52992676205010 1000000000
49055576058012 1000000000
70721000416119 1000000000
43151374327143 1000000000
70716000332404 1000000000
51528640431406 1000000000
65945925001029 1000000000
39524135856472 1000000000
66414932...

output:


result:


Test #21:

score: 0
Dangerous Syscalls

input:

99999
43981987091230 1000000000
41793950053258 1000000000
23385527966154 1000000000
32049759202175 1000000000
48927065970165 1000000000
26694629471843 1000000000
27661655640242 1000000000
37241867113918 1000000000
49110069037684 1000000000
20323405372655 1000000000
43304975621086 1000000000
48021052...

output:


result:


Test #22:

score: 0
Dangerous Syscalls

input:

99999
31159466866911 1000000000
28413414847308 1000000000
25948364344910 1000000000
31236468095715 1000000000
22036273821032 1000000000
24056321657736 1000000000
36031551606814 1000000000
37935581367999 1000000000
40624624246259 1000000000
18857191994835 1000000000
22179277697755 1000000000
29154428...

output:


result: