/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| 498k| def set(K k, V v) -> void {
15| 498k| u32 hash = k * r >> shift;
16| 577k| for (;;) {
17| 577k| if (use[hash] == 0) {
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| Branch (17:11): [True: 48.72%, False: 51.28%]
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18| 281k| key[hash] = k;
19| 281k| use[hash] = 1;
20| 281k| val[hash] = v;
21| 281k| return;
22| 281k| }
23| 296k| if (key[hash] == k) {
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| Branch (23:11): [True: 73.25%, False: 26.75%]
------------------
24| 217k| val[hash] = v;
25| 217k| return;
26| 217k| }
27| 79.2k| (++hash) &= (N - 1);
28| 79.2k| }
29| 498k| }
30| 501k| def get(K k) -> V {
31| 501k| u32 hash = k * r >> shift;
32| 580k| for (;;) {
33| 580k| if (use[hash] == 0) {
------------------
| Branch (33:11): [True: 48.69%, False: 51.31%]
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34| 282k| return 0;
35| 282k| }
36| 298k| if (key[hash] == k) {
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| Branch (36:11): [True: 73.34%, False: 26.66%]
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37| 218k| return val[hash];
38| 218k| }
39| 79.4k| (++hash) &= (N - 1);
40| 79.4k| }
41| 501k| }
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| 1.00M| while (q--) {
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| Branch (55:10): [True: 100.00%, False: 0.00%]
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56| 1.00M| let t = rd.u1();
57| 1.00M| if (t == 0) {
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| Branch (57:9): [True: 49.85%, False: 50.15%]
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58| 498k| let k = rd.ud();
59| 498k| let v = rd.ud();
60| 498k| hash_map.set(k, v);
61| 498k| }
62| 1.00M| if (t == 1) {
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| Branch (62:9): [True: 50.15%, False: 49.85%]
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63| 501k| let k = rd.ud();
64| 501k| let v = hash_map.get(k);
65| 501k| wt.ud(v);
66| 501k| }
67| 1.00M| }
68| 1| return 0;
69| 1|}