Submission #41724

# Submission time Handle Problem Language Result Execution time Memory
41724 2018-02-21T04:19:59 Z aome Segments (IZhO18_segments) C++14
75 / 100
5000 ms 40960 KB
#include <bits/stdc++.h>
using namespace std;

const int N = 200005;
const int B = 1000;

int n, t, sz, lastans;
int cnt;
int L[N], R[N];
bool del[N];
vector<int> buf_add;
vector<int> buf_del;
vector<int> block_l[500];
vector<int> block_r[500];
vector< pair<int, int> > go;

void prep() {
	go.clear();
	for (int i = 1; i <= sz; ++i) {
		if (!del[i]) go.push_back(make_pair(R[i] - L[i] + 1, i));
	}
	sort(go.begin(), go.end());
	buf_add.clear(), buf_del.clear();
	int m = go.size();
	for (int i = 0; i <= m / B; ++i) block_l[i].clear(), block_r[i].clear();
	for (int i = 0; i < m; ++i) block_l[i / B].push_back(L[go[i].second]);
	for (int i = 0; i < m; ++i) block_r[i / B].push_back(R[go[i].second]); 
	for (int i = 0; i <= m / B; ++i) {
		sort(block_l[i].begin(), block_l[i].end());
		sort(block_r[i].begin(), block_r[i].end());
	}
}

int calc(int id, int l, int r) {
	// count number of commont points betweeen L[id], R[id] and l, r
	if (L[id] > l) return max(0, min(r, R[id]) - L[id] + 1);
	return max(0, min(R[id], r) - l + 1);
}

int calL(int l, int r, int x) {
	// count number of segments from l -> r which has L > x
	int res = 0;
	int bl = l / B, br = r / B;
	if (bl == br) {
		for (int i = l; i <= r; ++i) res += L[go[i].second] > x;
		return res;
	}
	for (int i = bl + 1; i < br; ++i) {
		int tmp = lower_bound(block_l[i].begin(), block_l[i].end(), x + 1) - block_l[i].begin();
		res += B - tmp;
	}
	for (int i = l; i < (bl + 1) * B; ++i) res += L[go[i].second] > x;
	for (int i = br * B; i <= r; ++i) res += L[go[i].second] > x;
	return res;
}

int calR(int l, int r, int x) {
	// count number of segments from l -> r which has R < x
	int res = 0;
	int bl = l / B, br = r / B;
	if (bl == br) {
		for (int i = l; i <= r; ++i) res += R[go[i].second] < x;
		return res;
	}
	for (int i = bl + 1; i < br; ++i) {
		int tmp = lower_bound(block_r[i].begin(), block_r[i].end(), x) - block_r[i].begin();
		res += tmp;
	}
	for (int i = l; i < (bl + 1) * B; ++i) res += R[go[i].second] < x;
	for (int i = br * B; i <= r; ++i) res += R[go[i].second] < x;
	return res;
}

int main() {
	ios::sync_with_stdio(false);
	cin >> n >> t;
	for (int i = 1; i <= n; ++i) {
		if (i % B == 0) prep();

		int type; cin >> type;

		if (type == 1) {
			int l, r; cin >> l >> r;
			l = l ^ (1LL * t * lastans);
			r = r ^ (1LL * t * lastans);
			if (l > r) swap(l, r);
			++sz, L[sz] = l, R[sz] = r, buf_add.push_back(sz), cnt++;
		}

		if (type == 2) {
			int x; cin >> x, buf_del.push_back(x), del[x] = 1, cnt--;
		}

		if (type == 3) {
			int l, r, k; 
			cin >> l >> r >> k;
			l = l ^ (1LL * t * lastans);
			r = r ^ (1LL * t * lastans);
			if (l > r) swap(l, r);

			if (r - l + 1 < k) {
				lastans = 0, cout << "0\n"; continue;
			} 

			int res = 0;	

			// cout << "#add\n";
			// for (auto j : buf_add) cout << j << ' '; cout << '\n';
			// cout << "#del\n";
			// for (auto j : buf_del) cout << j << ' '; cout << '\n';

			for (auto j : buf_add) res += calc(j, l, r) < k;
			for (auto j : buf_del) res -= calc(j, l, r) < k;
			int p = lower_bound(go.begin(), go.end(), make_pair(k, 0)) - go.begin();

			// cout << "#go\n";
			// for (auto i : go) cout << i.second << ' '; cout << '\n';
			// cout << "#p " << p << '\n';

			// number of segments r - l + 1 < k
			res += p;

			// query p -> go.size() - 1 (segments with size >= k)

			// count number of segments L > r - k + 1
			res += calL(p, go.size() - 1, r - k + 1);
			// count number of segments R < l + k - 1
			res += calR(p, go.size() - 1, l + k - 1);

			// cout << "#l-r " << l << ' ' << r << '\n';
			// cout << "# " << res << '\n';

			res = cnt - res, lastans = res;
			cout << res << '\n';
		}
	}
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 8 ms 424 KB Output is correct
4 Correct 12 ms 440 KB Output is correct
5 Correct 12 ms 752 KB Output is correct
6 Correct 18 ms 752 KB Output is correct
7 Correct 16 ms 752 KB Output is correct
8 Correct 15 ms 752 KB Output is correct
9 Correct 10 ms 752 KB Output is correct
10 Correct 7 ms 840 KB Output is correct
11 Correct 17 ms 840 KB Output is correct
12 Correct 23 ms 876 KB Output is correct
13 Correct 8 ms 876 KB Output is correct
14 Correct 10 ms 876 KB Output is correct
15 Correct 8 ms 876 KB Output is correct
16 Correct 9 ms 876 KB Output is correct
17 Correct 10 ms 876 KB Output is correct
18 Correct 7 ms 876 KB Output is correct
19 Correct 11 ms 876 KB Output is correct
20 Correct 11 ms 876 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1630 ms 2548 KB Output is correct
2 Correct 1633 ms 5252 KB Output is correct
3 Correct 1603 ms 7824 KB Output is correct
4 Correct 1602 ms 10616 KB Output is correct
5 Correct 1220 ms 13508 KB Output is correct
6 Correct 1188 ms 16128 KB Output is correct
7 Correct 1615 ms 17856 KB Output is correct
8 Correct 1627 ms 20504 KB Output is correct
9 Correct 1557 ms 23128 KB Output is correct
10 Correct 1042 ms 25532 KB Output is correct
11 Correct 1156 ms 28504 KB Output is correct
12 Correct 1486 ms 32104 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 167 ms 32104 KB Output is correct
2 Correct 155 ms 32104 KB Output is correct
3 Correct 195 ms 32104 KB Output is correct
4 Correct 144 ms 32104 KB Output is correct
5 Correct 1629 ms 32192 KB Output is correct
6 Correct 1701 ms 34144 KB Output is correct
7 Correct 1705 ms 36568 KB Output is correct
8 Correct 1270 ms 39184 KB Output is correct
9 Correct 1255 ms 40960 KB Output is correct
10 Correct 1237 ms 40960 KB Output is correct
11 Correct 442 ms 40960 KB Output is correct
12 Correct 1223 ms 40960 KB Output is correct
13 Correct 1108 ms 40960 KB Output is correct
14 Correct 851 ms 40960 KB Output is correct
15 Correct 764 ms 40960 KB Output is correct
16 Correct 655 ms 40960 KB Output is correct
17 Correct 1778 ms 40960 KB Output is correct
18 Correct 1762 ms 40960 KB Output is correct
19 Correct 1744 ms 40960 KB Output is correct
20 Correct 1746 ms 40960 KB Output is correct
21 Correct 403 ms 40960 KB Output is correct
22 Correct 1056 ms 40960 KB Output is correct
23 Correct 1112 ms 40960 KB Output is correct
24 Correct 1081 ms 40960 KB Output is correct
25 Correct 168 ms 40960 KB Output is correct
26 Correct 152 ms 40960 KB Output is correct
27 Correct 162 ms 40960 KB Output is correct
28 Correct 157 ms 40960 KB Output is correct
29 Correct 1196 ms 40960 KB Output is correct
30 Correct 1168 ms 40960 KB Output is correct
31 Correct 1186 ms 40960 KB Output is correct
32 Correct 1213 ms 40960 KB Output is correct
33 Correct 1116 ms 40960 KB Output is correct
34 Correct 716 ms 40960 KB Output is correct
35 Correct 1063 ms 40960 KB Output is correct
36 Correct 1242 ms 40960 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 163 ms 40960 KB Output is correct
2 Correct 152 ms 40960 KB Output is correct
3 Correct 146 ms 40960 KB Output is correct
4 Correct 152 ms 40960 KB Output is correct
5 Correct 1532 ms 40960 KB Output is correct
6 Correct 970 ms 40960 KB Output is correct
7 Correct 1334 ms 40960 KB Output is correct
8 Correct 1096 ms 40960 KB Output is correct
9 Correct 878 ms 40960 KB Output is correct
10 Correct 1209 ms 40960 KB Output is correct
11 Correct 543 ms 40960 KB Output is correct
12 Correct 1148 ms 40960 KB Output is correct
13 Correct 1121 ms 40960 KB Output is correct
14 Correct 858 ms 40960 KB Output is correct
15 Correct 1176 ms 40960 KB Output is correct
16 Correct 1177 ms 40960 KB Output is correct
17 Correct 1596 ms 40960 KB Output is correct
18 Correct 1585 ms 40960 KB Output is correct
19 Correct 1661 ms 40960 KB Output is correct
20 Correct 1585 ms 40960 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 8 ms 424 KB Output is correct
4 Correct 12 ms 440 KB Output is correct
5 Correct 12 ms 752 KB Output is correct
6 Correct 18 ms 752 KB Output is correct
7 Correct 16 ms 752 KB Output is correct
8 Correct 15 ms 752 KB Output is correct
9 Correct 10 ms 752 KB Output is correct
10 Correct 7 ms 840 KB Output is correct
11 Correct 17 ms 840 KB Output is correct
12 Correct 23 ms 876 KB Output is correct
13 Correct 8 ms 876 KB Output is correct
14 Correct 10 ms 876 KB Output is correct
15 Correct 8 ms 876 KB Output is correct
16 Correct 9 ms 876 KB Output is correct
17 Correct 10 ms 876 KB Output is correct
18 Correct 7 ms 876 KB Output is correct
19 Correct 11 ms 876 KB Output is correct
20 Correct 11 ms 876 KB Output is correct
21 Correct 1630 ms 2548 KB Output is correct
22 Correct 1633 ms 5252 KB Output is correct
23 Correct 1603 ms 7824 KB Output is correct
24 Correct 1602 ms 10616 KB Output is correct
25 Correct 1220 ms 13508 KB Output is correct
26 Correct 1188 ms 16128 KB Output is correct
27 Correct 1615 ms 17856 KB Output is correct
28 Correct 1627 ms 20504 KB Output is correct
29 Correct 1557 ms 23128 KB Output is correct
30 Correct 1042 ms 25532 KB Output is correct
31 Correct 1156 ms 28504 KB Output is correct
32 Correct 1486 ms 32104 KB Output is correct
33 Correct 163 ms 40960 KB Output is correct
34 Correct 152 ms 40960 KB Output is correct
35 Correct 146 ms 40960 KB Output is correct
36 Correct 152 ms 40960 KB Output is correct
37 Correct 1532 ms 40960 KB Output is correct
38 Correct 970 ms 40960 KB Output is correct
39 Correct 1334 ms 40960 KB Output is correct
40 Correct 1096 ms 40960 KB Output is correct
41 Correct 878 ms 40960 KB Output is correct
42 Correct 1209 ms 40960 KB Output is correct
43 Correct 543 ms 40960 KB Output is correct
44 Correct 1148 ms 40960 KB Output is correct
45 Correct 1121 ms 40960 KB Output is correct
46 Correct 858 ms 40960 KB Output is correct
47 Correct 1176 ms 40960 KB Output is correct
48 Correct 1177 ms 40960 KB Output is correct
49 Correct 1596 ms 40960 KB Output is correct
50 Correct 1585 ms 40960 KB Output is correct
51 Correct 1661 ms 40960 KB Output is correct
52 Correct 1585 ms 40960 KB Output is correct
53 Correct 185 ms 40960 KB Output is correct
54 Correct 161 ms 40960 KB Output is correct
55 Correct 173 ms 40960 KB Output is correct
56 Correct 153 ms 40960 KB Output is correct
57 Correct 1464 ms 40960 KB Output is correct
58 Correct 631 ms 40960 KB Output is correct
59 Correct 1421 ms 40960 KB Output is correct
60 Correct 639 ms 40960 KB Output is correct
61 Correct 1156 ms 40960 KB Output is correct
62 Correct 1189 ms 40960 KB Output is correct
63 Correct 1132 ms 40960 KB Output is correct
64 Correct 1195 ms 40960 KB Output is correct
65 Correct 619 ms 40960 KB Output is correct
66 Correct 595 ms 40960 KB Output is correct
67 Correct 1176 ms 40960 KB Output is correct
68 Correct 1058 ms 40960 KB Output is correct
69 Correct 1566 ms 40960 KB Output is correct
70 Correct 1647 ms 40960 KB Output is correct
71 Correct 1560 ms 40960 KB Output is correct
72 Correct 1568 ms 40960 KB Output is correct
73 Correct 771 ms 40960 KB Output is correct
74 Correct 1064 ms 40960 KB Output is correct
75 Correct 1132 ms 40960 KB Output is correct
76 Correct 1212 ms 40960 KB Output is correct
77 Correct 167 ms 40960 KB Output is correct
78 Correct 159 ms 40960 KB Output is correct
79 Correct 174 ms 40960 KB Output is correct
80 Correct 180 ms 40960 KB Output is correct
81 Correct 992 ms 40960 KB Output is correct
82 Correct 763 ms 40960 KB Output is correct
83 Correct 524 ms 40960 KB Output is correct
84 Correct 1128 ms 40960 KB Output is correct
85 Correct 1145 ms 40960 KB Output is correct
86 Correct 1211 ms 40960 KB Output is correct
87 Correct 935 ms 40960 KB Output is correct
88 Correct 519 ms 40960 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 8 ms 424 KB Output is correct
4 Correct 12 ms 440 KB Output is correct
5 Correct 12 ms 752 KB Output is correct
6 Correct 18 ms 752 KB Output is correct
7 Correct 16 ms 752 KB Output is correct
8 Correct 15 ms 752 KB Output is correct
9 Correct 10 ms 752 KB Output is correct
10 Correct 7 ms 840 KB Output is correct
11 Correct 17 ms 840 KB Output is correct
12 Correct 23 ms 876 KB Output is correct
13 Correct 8 ms 876 KB Output is correct
14 Correct 10 ms 876 KB Output is correct
15 Correct 8 ms 876 KB Output is correct
16 Correct 9 ms 876 KB Output is correct
17 Correct 10 ms 876 KB Output is correct
18 Correct 7 ms 876 KB Output is correct
19 Correct 11 ms 876 KB Output is correct
20 Correct 11 ms 876 KB Output is correct
21 Correct 1630 ms 2548 KB Output is correct
22 Correct 1633 ms 5252 KB Output is correct
23 Correct 1603 ms 7824 KB Output is correct
24 Correct 1602 ms 10616 KB Output is correct
25 Correct 1220 ms 13508 KB Output is correct
26 Correct 1188 ms 16128 KB Output is correct
27 Correct 1615 ms 17856 KB Output is correct
28 Correct 1627 ms 20504 KB Output is correct
29 Correct 1557 ms 23128 KB Output is correct
30 Correct 1042 ms 25532 KB Output is correct
31 Correct 1156 ms 28504 KB Output is correct
32 Correct 1486 ms 32104 KB Output is correct
33 Correct 167 ms 32104 KB Output is correct
34 Correct 155 ms 32104 KB Output is correct
35 Correct 195 ms 32104 KB Output is correct
36 Correct 144 ms 32104 KB Output is correct
37 Correct 1629 ms 32192 KB Output is correct
38 Correct 1701 ms 34144 KB Output is correct
39 Correct 1705 ms 36568 KB Output is correct
40 Correct 1270 ms 39184 KB Output is correct
41 Correct 1255 ms 40960 KB Output is correct
42 Correct 1237 ms 40960 KB Output is correct
43 Correct 442 ms 40960 KB Output is correct
44 Correct 1223 ms 40960 KB Output is correct
45 Correct 1108 ms 40960 KB Output is correct
46 Correct 851 ms 40960 KB Output is correct
47 Correct 764 ms 40960 KB Output is correct
48 Correct 655 ms 40960 KB Output is correct
49 Correct 1778 ms 40960 KB Output is correct
50 Correct 1762 ms 40960 KB Output is correct
51 Correct 1744 ms 40960 KB Output is correct
52 Correct 1746 ms 40960 KB Output is correct
53 Correct 403 ms 40960 KB Output is correct
54 Correct 1056 ms 40960 KB Output is correct
55 Correct 1112 ms 40960 KB Output is correct
56 Correct 1081 ms 40960 KB Output is correct
57 Correct 168 ms 40960 KB Output is correct
58 Correct 152 ms 40960 KB Output is correct
59 Correct 162 ms 40960 KB Output is correct
60 Correct 157 ms 40960 KB Output is correct
61 Correct 1196 ms 40960 KB Output is correct
62 Correct 1168 ms 40960 KB Output is correct
63 Correct 1186 ms 40960 KB Output is correct
64 Correct 1213 ms 40960 KB Output is correct
65 Correct 1116 ms 40960 KB Output is correct
66 Correct 716 ms 40960 KB Output is correct
67 Correct 1063 ms 40960 KB Output is correct
68 Correct 1242 ms 40960 KB Output is correct
69 Correct 163 ms 40960 KB Output is correct
70 Correct 152 ms 40960 KB Output is correct
71 Correct 146 ms 40960 KB Output is correct
72 Correct 152 ms 40960 KB Output is correct
73 Correct 1532 ms 40960 KB Output is correct
74 Correct 970 ms 40960 KB Output is correct
75 Correct 1334 ms 40960 KB Output is correct
76 Correct 1096 ms 40960 KB Output is correct
77 Correct 878 ms 40960 KB Output is correct
78 Correct 1209 ms 40960 KB Output is correct
79 Correct 543 ms 40960 KB Output is correct
80 Correct 1148 ms 40960 KB Output is correct
81 Correct 1121 ms 40960 KB Output is correct
82 Correct 858 ms 40960 KB Output is correct
83 Correct 1176 ms 40960 KB Output is correct
84 Correct 1177 ms 40960 KB Output is correct
85 Correct 1596 ms 40960 KB Output is correct
86 Correct 1585 ms 40960 KB Output is correct
87 Correct 1661 ms 40960 KB Output is correct
88 Correct 1585 ms 40960 KB Output is correct
89 Correct 185 ms 40960 KB Output is correct
90 Correct 161 ms 40960 KB Output is correct
91 Correct 173 ms 40960 KB Output is correct
92 Correct 153 ms 40960 KB Output is correct
93 Correct 1464 ms 40960 KB Output is correct
94 Correct 631 ms 40960 KB Output is correct
95 Correct 1421 ms 40960 KB Output is correct
96 Correct 639 ms 40960 KB Output is correct
97 Correct 1156 ms 40960 KB Output is correct
98 Correct 1189 ms 40960 KB Output is correct
99 Correct 1132 ms 40960 KB Output is correct
100 Correct 1195 ms 40960 KB Output is correct
101 Correct 619 ms 40960 KB Output is correct
102 Correct 595 ms 40960 KB Output is correct
103 Correct 1176 ms 40960 KB Output is correct
104 Correct 1058 ms 40960 KB Output is correct
105 Correct 1566 ms 40960 KB Output is correct
106 Correct 1647 ms 40960 KB Output is correct
107 Correct 1560 ms 40960 KB Output is correct
108 Correct 1568 ms 40960 KB Output is correct
109 Correct 771 ms 40960 KB Output is correct
110 Correct 1064 ms 40960 KB Output is correct
111 Correct 1132 ms 40960 KB Output is correct
112 Correct 1212 ms 40960 KB Output is correct
113 Correct 167 ms 40960 KB Output is correct
114 Correct 159 ms 40960 KB Output is correct
115 Correct 174 ms 40960 KB Output is correct
116 Correct 180 ms 40960 KB Output is correct
117 Correct 992 ms 40960 KB Output is correct
118 Correct 763 ms 40960 KB Output is correct
119 Correct 524 ms 40960 KB Output is correct
120 Correct 1128 ms 40960 KB Output is correct
121 Correct 1145 ms 40960 KB Output is correct
122 Correct 1211 ms 40960 KB Output is correct
123 Correct 935 ms 40960 KB Output is correct
124 Correct 519 ms 40960 KB Output is correct
125 Correct 318 ms 40960 KB Output is correct
126 Correct 326 ms 40960 KB Output is correct
127 Correct 348 ms 40960 KB Output is correct
128 Correct 338 ms 40960 KB Output is correct
129 Correct 320 ms 40960 KB Output is correct
130 Correct 323 ms 40960 KB Output is correct
131 Correct 2584 ms 40960 KB Output is correct
132 Execution timed out 5088 ms 40960 KB Time limit exceeded
133 Halted 0 ms 0 KB -