System of Linear Equations (verify/linalg/system.test.cpp)

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• Last update: 2025-12-30 00:27:16+01:00
• Problem: https://judge.yosupo.jp/problem/system_of_linear_equations

Depends on

• cp-algo/linalg/matrix.hpp
• cp-algo/linalg/vector.hpp
• cp-algo/math/common.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/simd.hpp

Code

// @brief System of Linear Equations
#define PROBLEM "https://judge.yosupo.jp/problem/system_of_linear_equations"
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include <bits/stdc++.h>
//#include "blazingio/blazingio.min.hpp"
#include "cp-algo/linalg/matrix.hpp"

using namespace std;
using namespace cp_algo::linalg;
using namespace cp_algo::math;

const int64_t mod = 998244353;

void solve() {
    int n, m;
    cin >> n >> m;
    matrix<modint<mod>> A(n, m), b(n, 1);
    A.read();
    b.read();
    auto x = A.solve(b);
    if(!x) {
        cout << -1 << "\n";
    } else {
        auto [sol, basis] = *x;
        cout << basis.n() << "\n";
        sol.print();
        basis.print();
    }
}

signed main() {
    //freopen("input.txt", "r", stdin);
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    while(t--) {
        solve();
    }
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj_resolve/resolver.py", line 181, 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 252, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 327, in update
    assert len(lines) == len(uncommented_lines)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError

Test cases

Env	Name	Status	Elapsed	Memory
g++	example_00	AC	5 ms	4 MB
g++	fullrank_00	AC	14 ms	6 MB
g++	fullrank_01	AC	14 ms	6 MB
g++	fullrank_02	AC	10 ms	5 MB
g++	fullrank_no_solution_00	AC	14 ms	6 MB
g++	fullrank_no_solution_01	AC	14 ms	6 MB
g++	fullrank_no_solution_02	AC	9 ms	5 MB
g++	hack_00	AC	17 ms	7 MB
g++	hack_01	AC	12 ms	5 MB
g++	hack_02	AC	15 ms	6 MB
g++	hack_03	AC	6 ms	4 MB
g++	hack_04	AC	10 ms	5 MB
g++	hack_05	AC	14 ms	6 MB
g++	lowrank_00	AC	30 ms	9 MB
g++	lowrank_01	AC	33 ms	9 MB
g++	lowrank_02	AC	23 ms	10 MB
g++	lowrank_03	AC	35 ms	11 MB
g++	lowrank_04	AC	26 ms	9 MB
g++	lowrank_05	AC	34 ms	10 MB
g++	max_00	AC	44 ms	10 MB
g++	max_01	AC	42 ms	10 MB
g++	max_02	AC	41 ms	10 MB
g++	random_00	AC	14 ms	5 MB
g++	random_01	AC	11 ms	5 MB
g++	random_02	AC	14 ms	6 MB
g++	random_03	AC	11 ms	5 MB
g++	random_04	AC	10 ms	5 MB

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