Dense Convolution (verify/poly/convolution.test.cpp)

• View this file on GitHub
• Last update: 2026-09-10 02:45:56+02:00
• Problem: https://judge.yosupo.jp/problem/convolution_mod

Depends on

• cp-algo/math/common.hpp
• cp-algo/math/cvector.hpp
• cp-algo/math/dft.hpp
• cp-algo/math/fft.hpp
• cp-algo/number_theory/modint.hpp
• cp-algo/random/rng.hpp
• cp-algo/util/big_alloc.hpp
• cp-algo/util/checkpoint.hpp
• cp-algo/util/complex.hpp
• cp-algo/util/simd.hpp

Code

// @brief Dense Convolution
#define PROBLEM "https://judge.yosupo.jp/problem/convolution_mod"
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include "blazingio/blazingio.min.hpp"
#include "cp-algo/math/fft.hpp"

using namespace cp_algo::math;
using base = modint<998244353>;

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n, m;
    std::cin >> n >> m;
    cp_algo::big_vector<base> a(n), b(m);
    for(auto &x: a) {std::cin >> x;}
    for(auto &x: b) {std::cin >> x;}
    fft::mul(a, b);
    for(auto x: a) {std::cout << x << ' ';}
    std::cout << '\n';
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/resolver.py", line 290, in resolve
    bundled_code = language.bundle(path, basedir=basedir)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/languages/cplusplus.py", line 243, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/languages/cplusplus_bundle.py", line 322, in update
    assert len(lines) == len(uncommented_lines)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError

Test cases

Env	Name	Status	Elapsed	Memory
g++	all_same_00	AC	52 ms	47 MB
g++	all_same_01	AC	61 ms	55 MB
g++	all_same_02	AC	53 ms	55 MB
g++	all_same_03	AC	58 ms	55 MB
g++	example_00	AC	2 ms	6 MB
g++	example_01	AC	2 ms	6 MB
g++	fft_killer_00	AC	59 ms	55 MB
g++	fft_killer_01	AC	62 ms	55 MB
g++	fft_killer_02	AC	61 ms	55 MB
g++	fft_killer_03	AC	60 ms	55 MB
g++	fft_killer_04	AC	60 ms	55 MB
g++	fft_killer_05	AC	61 ms	55 MB
g++	fft_killer_06	AC	59 ms	55 MB
g++	fft_killer_07	AC	61 ms	55 MB
g++	fft_killer_08	AC	61 ms	55 MB
g++	fft_killer_09	AC	58 ms	55 MB
g++	max_ans_zero_00	AC	64 ms	55 MB
g++	max_random_00	AC	64 ms	55 MB
g++	max_random_01	AC	63 ms	55 MB
g++	medium_00	AC	3 ms	6 MB
g++	medium_01	AC	3 ms	6 MB
g++	medium_02	AC	3 ms	6 MB
g++	medium_all_zero_00	AC	3 ms	6 MB
g++	medium_pre_suf_zero_00	AC	2 ms	6 MB
g++	medium_pre_suf_zero_01	AC	2 ms	6 MB
g++	medium_pre_suf_zero_02	AC	2 ms	6 MB
g++	medium_pre_suf_zero_03	AC	2 ms	6 MB
g++	medium_pre_suf_zero_04	AC	2 ms	6 MB
g++	random_00	AC	55 ms	51 MB
g++	random_01	AC	60 ms	52 MB
g++	random_02	AC	32 ms	28 MB
g++	signed_overflow_00	AC	2 ms	6 MB
g++	small_00	AC	2 ms	6 MB
g++	small_01	AC	2 ms	6 MB
g++	small_02	AC	2 ms	6 MB
g++	small_03	AC	2 ms	6 MB
g++	small_04	AC	2 ms	6 MB
g++	small_05	AC	2 ms	6 MB
g++	small_06	AC	2 ms	6 MB
g++	small_07	AC	2 ms	6 MB
g++	small_08	AC	2 ms	6 MB
g++	small_09	AC	2 ms	6 MB
g++	small_10	AC	2 ms	6 MB
g++	small_11	AC	2 ms	6 MB
g++	small_12	AC	2 ms	6 MB
g++	small_13	AC	2 ms	6 MB
g++	small_14	AC	2 ms	6 MB
g++	small_15	AC	2 ms	6 MB
g++	small_and_large_00	AC	47 ms	46 MB
g++	small_and_large_01	AC	48 ms	46 MB
g++	small_and_large_02	AC	45 ms	48 MB
g++	small_and_large_03	AC	42 ms	48 MB
g++	unsigned_overflow_00	AC	2 ms	6 MB

Back to top page