/tmp/solutions/build/associative_array-main.cpp:
1| |#include <common.h>
2| |#include <toy/bit.h>
3| |prelude;
4| |
5| |namespace {
6| |
7| |template <typename K, typename V, u32 N> struct HashMap {
8| | static_assert(has_single_bit(N));
9| | K key[N];
10| | V val[N];
11| | std::bitset<N> use;
12| | static constexpr u32 shift = 64 - log(N);
13| | static constexpr u64 r = 11995408973635179863ULL;
14| 194k| def set(K k, V v) -> void {
15| 194k| u32 hash = k * r >> shift;
16| 210k| for (;;) {
17| 210k| if (use[hash] == 0) {
------------------
| Branch (17:11): [True: 73.76%, False: 26.24%]
------------------
18| 155k| key[hash] = k;
19| 155k| use[hash] = 1;
20| 155k| val[hash] = v;
21| 155k| return;
22| 155k| }
23| 55.2k| if (key[hash] == k) {
------------------
| Branch (23:11): [True: 71.63%, False: 28.37%]
------------------
24| 39.5k| val[hash] = v;
25| 39.5k| return;
26| 39.5k| }
27| 15.6k| (++hash) &= (N - 1);
28| 15.6k| }
29| 194k| }
30| 194k| def get(K k) -> V {
31| 194k| u32 hash = k * r >> shift;
32| 210k| for (;;) {
33| 210k| if (use[hash] == 0) {
------------------
| Branch (33:11): [True: 73.56%, False: 26.44%]
------------------
34| 155k| return 0;
35| 155k| }
36| 55.7k| if (key[hash] == k) {
------------------
| Branch (36:11): [True: 71.51%, False: 28.49%]
------------------
37| 39.8k| return val[hash];
38| 39.8k| }
39| 15.8k| (++hash) &= (N - 1);
40| 15.8k| }
41| 194k| }
42| |};
43| |
44| |HashMap<u64, u64, 1 << 20> hash_map;
45| |
46| |} // namespace
47| |
48| 1|int main() {
49| 1| rd rd;
50| 1| wt wt;
51| 1| int q = rd.uh();
52| 1|#ifdef LOCAL
53| 1| hash_map.use.reset();
54| 1|#endif
55| 389k| while (q--) {
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| Branch (55:10): [True: 100.00%, False: 0.00%]
------------------
56| 389k| let t = rd.u1();
57| 389k| if (t == 0) {
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| Branch (57:9): [True: 49.99%, False: 50.01%]
------------------
58| 194k| let k = rd.ud();
59| 194k| let v = rd.ud();
60| 194k| hash_map.set(k, v);
61| 194k| }
62| 389k| if (t == 1) {
------------------
| Branch (62:9): [True: 50.01%, False: 49.99%]
------------------
63| 194k| let k = rd.ud();
64| 194k| let v = hash_map.get(k);
65| 194k| wt.ud(v);
66| 194k| }
67| 389k| }
68| 1| return 0;
69| 1|}