test/yosupo/math/number_of_subsequences.test.cpp

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• Last update: 2025-06-20 15:18:35+09:00
• Problem: https://judge.yosupo.jp/problem/number_of_subsequences

Depends on

• 座標圧縮 (lib/algorithm/compress.hpp)
• Montgomery modular multiplication (lib/internal/internal_math.hpp)
• lib/math/modint.hpp

Code

// competitive-verifier: PROBLEM https://judge.yosupo.jp/problem/number_of_subsequences
#include <algorithm>
#include <iostream>
#include <vector>
#include "algorithm/compress.hpp"
#include "math/modint.hpp"

using Mint = modint998;

int main(void) {
    int n;
    std::cin >> n;
    std::vector<int> a(n);
    for (auto &e : a) std::cin >> e;
    a = compress(a);
    Mint ans = 0;
    std::vector<Mint> dp(*std::max_element(a.begin(), a.end()) + 1);
    for (auto x : a) {
        auto t = ans - dp[x] + 1;
        ans += t, dp[x] += t;
    }
    std::cout << ans << '\n';

    return 0;
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/resolver.py", line 291, in resolve
    bundled_code = language.bundle(path, basedir=basedir)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus.py", line 242, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 479, in update
    self._resolve(pathlib.Path(included), included_from=path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 286, in _resolve
    raise BundleErrorAt(path, -1, "no such header")
competitive_verifier.oj.verify.languages.cplusplus_bundle.BundleErrorAt: algorithm/compress.hpp: line -1: no such header

Test cases

Env	Name	Status	Elapsed	Memory
g++	all_same_00	AC	117 ms	8 MB
g++	all_same_01	AC	139 ms	9 MB
g++	example_00	AC	2 ms	4 MB
g++	example_01	AC	2 ms	4 MB
g++	mini_00	AC	2 ms	3 MB
g++	narrow_max_00	AC	205 ms	9 MB
g++	narrow_max_01	AC	199 ms	9 MB
g++	narrow_random_00	AC	154 ms	8 MB
g++	narrow_random_01	AC	184 ms	9 MB
g++	small_random_00	AC	2 ms	4 MB
g++	small_random_01	AC	2 ms	3 MB
g++	small_random_02	AC	2 ms	3 MB
g++	wide_max_00	AC	241 ms	9 MB
g++	wide_max_01	AC	239 ms	9 MB
g++	wide_random_00	AC	189 ms	8 MB
g++	wide_random_01	AC	222 ms	9 MB

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