/tmp/solutions/build/range_reverse_range_sum-main.cpp:
1| |#include <common.h>
2| |prelude;
3| |
4| |namespace {
5| |
6| |constexpr int N = 200003;
7| |
8| |struct Node {
9| | int val;
10| | u64 sum;
11| | int rev;
12| | int size;
13| | int l, r;
14| |} node[N];
15| |
16| 2.77M|def maintain(int x) -> void {
17| 2.77M| node[x].size = node[node[x].l].size + 1 + node[node[x].r].size;
18| 2.77M| node[x].sum = node[node[x].l].sum + node[x].val + node[node[x].r].sum;
19| 2.77M|}
20| |
21| 513|def build(int l, int r) -> int {
22| 513| if (l > r) return 0;
^257
------------------
| Branch (22:7): [True: 50.10%, False: 49.90%]
------------------
23| 256| int m = (l + r) / 2;
24| 256| node[m].l = build(l, m - 1);
25| 256| node[m].r = build(m + 1, r);
26| 256| maintain(m);
27| 256| return m;
28| 513|}
29| |
30| 3.12M|def pushdown(int x) -> void {
31| 3.12M| if (node[x].rev) {
------------------
| Branch (31:7): [True: 27.63%, False: 72.37%]
------------------
32| 862k| std::swap(node[x].l, node[x].r);
33| 862k| node[node[x].l].rev ^= 1;
34| 862k| node[node[x].r].rev ^= 1;
35| 862k| node[x].rev = 0;
36| 862k| }
37| 3.12M|}
38| |
39| 86.6k|def reverse(int x) -> void {
40| 86.6k| if (x == 0) return;
^701
------------------
| Branch (40:7): [True: 0.81%, False: 99.19%]
------------------
41| 85.9k| node[x].rev ^= 1;
42| 85.9k|}
43| |
44| 1.36M|def zig(int &x) -> void {
45| 1.36M| int l = node[x].l;
46| 1.36M| node[x].l = node[l].r;
47| 1.36M| maintain(x);
48| 1.36M| node[l].r = x;
49| 1.36M| x = l;
50| 1.36M|}
51| |
52| 1.40M|def zag(int &x) -> void {
53| 1.40M| int r = node[x].r;
54| 1.40M| node[x].r = node[r].l;
55| 1.40M| maintain(x);
56| 1.40M| node[r].l = x;
57| 1.40M| x = r;
58| 1.40M|}
59| |
60| 1.64M|def splay(int &x, int k) -> void {
61| 1.64M| pushdown(x);
62| 1.64M| if (int &l = node[x].l, &r = node[x].r, size = node[l].size; k == size) {
------------------
| Branch (62:64): [True: 10.54%, False: 89.46%]
------------------
63| 173k| return;
64| 1.47M| } else if (k < size) {
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| Branch (64:14): [True: 48.37%, False: 51.63%]
------------------
65| 713k| pushdown(l);
66| 713k| if (int &ll = node[l].l, &lr = node[l].r, size = node[ll].size; k == size) {
------------------
| Branch (66:69): [True: 12.32%, False: 87.68%]
------------------
67| 87.8k| zig(x);
68| 625k| } else if (k < size) {
------------------
| Branch (68:16): [True: 50.21%, False: 49.79%]
------------------
69| 313k| splay(ll, k);
70| 313k| zig(x);
71| 313k| zig(x);
72| 313k| } else {
73| 311k| splay(lr, k - size - 1);
74| 311k| zag(l);
75| 311k| zig(x);
76| 311k| }
77| 761k| } else {
78| 761k| pushdown(r);
79| 761k| k -= size + 1;
80| 761k| if (int &rl = node[r].l, &rr = node[r].r, size = node[rl].size; k == size) {
------------------
| Branch (80:69): [True: 11.16%, False: 88.84%]
------------------
81| 84.9k| zag(x);
82| 676k| } else if (k < size) {
------------------
| Branch (82:16): [True: 50.58%, False: 49.42%]
------------------
83| 342k| splay(rl, k);
84| 342k| zig(r);
85| 342k| zag(x);
86| 342k| } else {
87| 334k| splay(rr, k - size - 1);
88| 334k| zag(x);
89| 334k| zag(x);
90| 334k| }
91| 761k| }
92| 1.64M|}
93| |
94| |} // namespace
95| |
96| 1|int main() {
97| 1| rd rd;
98| 1| wt wt;
99| 1| int n = rd.uh();
100| 1| int q = rd.uh();
101| 1|#ifdef LOCAL
102| 1| std::memset(node, 0, sizeof(Node) * (n + 3));
103| 1|#endif
104| 255| for (int i = 2; i <= n + 1; ++i) node[i].val = rd.uw();
^254 ^254
------------------
| Branch (104:19): [True: 99.61%, False: 0.39%]
------------------
105| 1| int x = build(1, n + 2);
106| 1| if (n == 0) rd.skip(1);
^0
------------------
| Branch (106:7): [True: 0.00%, False: 100.00%]
------------------
107| 173k| while (q--) {
------------------
| Branch (107:10): [True: 100.00%, False: 0.00%]
------------------
108| 173k| int t = rd.u1();
109| 173k| int l = rd.uh();
110| 173k| int r = rd.uh();
111| 173k| splay(x, l);
112| 173k| splay(node[x].r, r - l);
113| 173k| if (t == 0) {
------------------
| Branch (113:9): [True: 50.00%, False: 50.00%]
------------------
114| 86.6k| reverse(node[node[x].r].l);
115| 86.6k| }
116| 173k| if (t == 1) {
------------------
| Branch (116:9): [True: 50.00%, False: 50.00%]
------------------
117| 86.6k| wt.ud(node[node[node[x].r].l].sum);
118| 86.6k| }
119| 173k| }
120| 1| return 0;
121| 1|}