#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
const int N = 3e5 + 5;
struct Node {
int s, t; long long c;
Node(int s = 0LL, int t = 0LL, long long c = -1): s(s), t(t), c(c) {};
friend Node operator + (const Node <, const Node &rt) {
if (~lt.c && ~rt.c) {
return {lt.s, rt.t, lt.c + rt.c + max(0, lt.t - rt.s)};
}
if (~lt.c) {
return {lt.s, min(rt.t, max(lt.t, rt.s)), lt.c + max(0, lt.t - rt.t)};
}
if (~rt.c) {
return {min(lt.t, max(lt.s, rt.s)), rt.t, max(0, lt.s - rt.s) + rt.c};
}
if (lt.t < rt.s) {
return {lt.t, rt.s, 0};
}
if (lt.s > rt.t) {
return {lt.s, rt.t, lt.s - rt.t};
}
return {max(lt.s, rt.s), min(lt.t, rt.t), -1};
}
};
int n, q;
struct Segtree {
Node s[4 * N];
void upd(int i, int u, int v, int id = 1, int l = 1, int r = n - 1) {
if (l == r) {
s[id] = {u - i, v - i - 1};
return;
}
int md = (l + r) / 2;
if (i <= md) {
upd(i, u, v, id * 2, l, md);
} else {
upd(i, u, v, id * 2 + 1, md + 1, r);
}
s[id] = s[id * 2] + s[id * 2 + 1];
}
Node qry(int u, int v, int id = 1, int l = 1, int r = n - 1) {
if (u <= l && r <= v) {
return s[id];
}
int md = (l + r) / 2;
if (v <= md) {
return qry(u, v, id * 2, l, md);
}
if (md < u) {
return qry(u, v, id * 2 + 1, md + 1, r);
}
return qry(u, v, id * 2, l, md) + qry(u, v, id * 2 + 1, md + 1, r);
}
long long get(int l, int r, int s, int e) {
if (l == r) {
return max(0, s - e);
}
return max(0LL, (Node(s - l, s - l, -1) + qry(l, r - 1) + Node(e - r, e - r, -1)).c);
}
} A, B;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
cin >> n >> q;
for (int i = 1; i < n; ++i) {
int l, r; cin >> l >> r;
A.upd(i, l, r);
B.upd(n - i, l, r);
}
while (q--) {
int type; cin >> type;
if (type == 1) {
int p, s, e; cin >> p >> s >> e;
A.upd(p, s, e);
B.upd(n - p, s, e);
} else {
int s, e, l, r; cin >> l >> s >> r >> e;
if (l <= r) {
cout << A.get(l, r, s, e) << "\n";
} else {
cout << B.get(n - l + 1, n - r + 1, s, e) << "\n";
}
}
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
37976 KB |
Output is correct |
2 |
Correct |
4 ms |
37980 KB |
Output is correct |
3 |
Correct |
4 ms |
37980 KB |
Output is correct |
4 |
Correct |
4 ms |
37980 KB |
Output is correct |
5 |
Correct |
4 ms |
37980 KB |
Output is correct |
6 |
Correct |
4 ms |
37980 KB |
Output is correct |
7 |
Correct |
4 ms |
37980 KB |
Output is correct |
8 |
Correct |
5 ms |
37980 KB |
Output is correct |
9 |
Correct |
5 ms |
37976 KB |
Output is correct |
10 |
Correct |
4 ms |
37976 KB |
Output is correct |
11 |
Correct |
5 ms |
37976 KB |
Output is correct |
12 |
Correct |
6 ms |
38092 KB |
Output is correct |
13 |
Correct |
5 ms |
37976 KB |
Output is correct |
14 |
Correct |
5 ms |
38080 KB |
Output is correct |
15 |
Correct |
8 ms |
37980 KB |
Output is correct |
16 |
Correct |
5 ms |
37976 KB |
Output is correct |
17 |
Correct |
6 ms |
37976 KB |
Output is correct |
18 |
Correct |
6 ms |
37980 KB |
Output is correct |
19 |
Correct |
5 ms |
37976 KB |
Output is correct |
20 |
Correct |
5 ms |
37976 KB |
Output is correct |
21 |
Correct |
5 ms |
37980 KB |
Output is correct |
22 |
Correct |
5 ms |
37980 KB |
Output is correct |
23 |
Correct |
5 ms |
38076 KB |
Output is correct |
24 |
Correct |
6 ms |
37980 KB |
Output is correct |
25 |
Correct |
6 ms |
37976 KB |
Output is correct |
26 |
Correct |
6 ms |
37980 KB |
Output is correct |
27 |
Correct |
5 ms |
37980 KB |
Output is correct |
28 |
Correct |
6 ms |
37980 KB |
Output is correct |
29 |
Correct |
5 ms |
38044 KB |
Output is correct |
30 |
Correct |
5 ms |
38084 KB |
Output is correct |
31 |
Correct |
6 ms |
38232 KB |
Output is correct |
32 |
Correct |
6 ms |
37980 KB |
Output is correct |
33 |
Correct |
7 ms |
37980 KB |
Output is correct |
34 |
Correct |
5 ms |
37980 KB |
Output is correct |
35 |
Correct |
5 ms |
37980 KB |
Output is correct |
36 |
Correct |
6 ms |
37976 KB |
Output is correct |
37 |
Correct |
5 ms |
38076 KB |
Output is correct |
38 |
Correct |
6 ms |
37980 KB |
Output is correct |
39 |
Correct |
5 ms |
37980 KB |
Output is correct |
40 |
Correct |
6 ms |
37980 KB |
Output is correct |
41 |
Correct |
5 ms |
37980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
326 ms |
42104 KB |
Output is correct |
2 |
Correct |
287 ms |
57464 KB |
Output is correct |
3 |
Correct |
274 ms |
57684 KB |
Output is correct |
4 |
Correct |
289 ms |
57172 KB |
Output is correct |
5 |
Correct |
297 ms |
57684 KB |
Output is correct |
6 |
Correct |
288 ms |
57688 KB |
Output is correct |
7 |
Correct |
286 ms |
57684 KB |
Output is correct |
8 |
Correct |
304 ms |
58196 KB |
Output is correct |
9 |
Correct |
305 ms |
57576 KB |
Output is correct |
10 |
Correct |
284 ms |
57684 KB |
Output is correct |
11 |
Correct |
283 ms |
57788 KB |
Output is correct |
12 |
Correct |
289 ms |
58196 KB |
Output is correct |
13 |
Correct |
301 ms |
58108 KB |
Output is correct |
14 |
Correct |
4 ms |
37980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
37976 KB |
Output is correct |
2 |
Correct |
4 ms |
37980 KB |
Output is correct |
3 |
Correct |
4 ms |
37980 KB |
Output is correct |
4 |
Correct |
4 ms |
37980 KB |
Output is correct |
5 |
Correct |
4 ms |
37980 KB |
Output is correct |
6 |
Correct |
4 ms |
37980 KB |
Output is correct |
7 |
Correct |
4 ms |
37980 KB |
Output is correct |
8 |
Correct |
5 ms |
37980 KB |
Output is correct |
9 |
Correct |
5 ms |
37976 KB |
Output is correct |
10 |
Correct |
4 ms |
37976 KB |
Output is correct |
11 |
Correct |
5 ms |
37976 KB |
Output is correct |
12 |
Correct |
6 ms |
38092 KB |
Output is correct |
13 |
Correct |
5 ms |
37976 KB |
Output is correct |
14 |
Correct |
5 ms |
38080 KB |
Output is correct |
15 |
Correct |
8 ms |
37980 KB |
Output is correct |
16 |
Correct |
5 ms |
37976 KB |
Output is correct |
17 |
Correct |
6 ms |
37976 KB |
Output is correct |
18 |
Correct |
6 ms |
37980 KB |
Output is correct |
19 |
Correct |
5 ms |
37976 KB |
Output is correct |
20 |
Correct |
5 ms |
37976 KB |
Output is correct |
21 |
Correct |
5 ms |
37980 KB |
Output is correct |
22 |
Correct |
5 ms |
37980 KB |
Output is correct |
23 |
Correct |
5 ms |
38076 KB |
Output is correct |
24 |
Correct |
6 ms |
37980 KB |
Output is correct |
25 |
Correct |
6 ms |
37976 KB |
Output is correct |
26 |
Correct |
6 ms |
37980 KB |
Output is correct |
27 |
Correct |
5 ms |
37980 KB |
Output is correct |
28 |
Correct |
6 ms |
37980 KB |
Output is correct |
29 |
Correct |
5 ms |
38044 KB |
Output is correct |
30 |
Correct |
5 ms |
38084 KB |
Output is correct |
31 |
Correct |
6 ms |
38232 KB |
Output is correct |
32 |
Correct |
6 ms |
37980 KB |
Output is correct |
33 |
Correct |
7 ms |
37980 KB |
Output is correct |
34 |
Correct |
5 ms |
37980 KB |
Output is correct |
35 |
Correct |
5 ms |
37980 KB |
Output is correct |
36 |
Correct |
6 ms |
37976 KB |
Output is correct |
37 |
Correct |
5 ms |
38076 KB |
Output is correct |
38 |
Correct |
6 ms |
37980 KB |
Output is correct |
39 |
Correct |
5 ms |
37980 KB |
Output is correct |
40 |
Correct |
6 ms |
37980 KB |
Output is correct |
41 |
Correct |
5 ms |
37980 KB |
Output is correct |
42 |
Correct |
326 ms |
42104 KB |
Output is correct |
43 |
Correct |
287 ms |
57464 KB |
Output is correct |
44 |
Correct |
274 ms |
57684 KB |
Output is correct |
45 |
Correct |
289 ms |
57172 KB |
Output is correct |
46 |
Correct |
297 ms |
57684 KB |
Output is correct |
47 |
Correct |
288 ms |
57688 KB |
Output is correct |
48 |
Correct |
286 ms |
57684 KB |
Output is correct |
49 |
Correct |
304 ms |
58196 KB |
Output is correct |
50 |
Correct |
305 ms |
57576 KB |
Output is correct |
51 |
Correct |
284 ms |
57684 KB |
Output is correct |
52 |
Correct |
283 ms |
57788 KB |
Output is correct |
53 |
Correct |
289 ms |
58196 KB |
Output is correct |
54 |
Correct |
301 ms |
58108 KB |
Output is correct |
55 |
Correct |
4 ms |
37980 KB |
Output is correct |
56 |
Correct |
286 ms |
54508 KB |
Output is correct |
57 |
Correct |
272 ms |
54104 KB |
Output is correct |
58 |
Correct |
266 ms |
54612 KB |
Output is correct |
59 |
Correct |
298 ms |
54680 KB |
Output is correct |
60 |
Correct |
272 ms |
54208 KB |
Output is correct |
61 |
Correct |
297 ms |
54896 KB |
Output is correct |
62 |
Correct |
286 ms |
54868 KB |
Output is correct |
63 |
Correct |
298 ms |
54768 KB |
Output is correct |
64 |
Correct |
287 ms |
54868 KB |
Output is correct |
65 |
Correct |
272 ms |
54508 KB |
Output is correct |
66 |
Correct |
295 ms |
54616 KB |
Output is correct |
67 |
Correct |
282 ms |
54896 KB |
Output is correct |
68 |
Correct |
291 ms |
54100 KB |
Output is correct |
69 |
Correct |
302 ms |
54868 KB |
Output is correct |
70 |
Correct |
270 ms |
54400 KB |
Output is correct |
71 |
Correct |
276 ms |
53624 KB |
Output is correct |
72 |
Correct |
287 ms |
53744 KB |
Output is correct |
73 |
Correct |
289 ms |
54408 KB |
Output is correct |
74 |
Correct |
324 ms |
54420 KB |
Output is correct |
75 |
Correct |
307 ms |
54640 KB |
Output is correct |
76 |
Correct |
303 ms |
55036 KB |
Output is correct |
77 |
Correct |
5 ms |
37980 KB |
Output is correct |