結果
問題 | No.2446 完全列 |
ユーザー | 👑 AngrySadEight |
提出日時 | 2023-07-08 01:14:32 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 4,967 bytes |
コンパイル時間 | 5,486 ms |
コンパイル使用メモリ | 227,888 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-06 20:27:18 |
合計ジャッジ時間 | 6,288 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 1 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 1 ms
6,944 KB |
testcase_15 | AC | 1 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 1 ms
6,940 KB |
testcase_18 | AC | 1 ms
6,944 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 1 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 1 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | AC | 1 ms
6,940 KB |
testcase_27 | AC | 1 ms
6,944 KB |
testcase_28 | AC | 1 ms
6,944 KB |
testcase_29 | AC | 2 ms
6,940 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <algorithm> #include <atcoder/all> #include <bitset> #include <cassert> #include <cmath> #include <ctime> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using namespace atcoder; typedef long long ll; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define repk(i, k, n) for (int i = k; i < (int)(n); i++) #define all(v) v.begin(), v.end() #define mod1 1000000007 #define mod2 998244353 #define mod3 100000007 #define vi vector<int> #define vs vector<string> #define vc vector<char> #define vl vector<ll> #define vb vector<bool> #define vvi vector<vector<int>> #define vvc vector<vector<char>> #define vvl vector<vector<ll>> #define vvb vector<vector<bool>> #define vvvi vector<vector<vector<int>>> #define vvvl vector<vector<vector<ll>>> #define pii pair<int, int> #define pil pair<int, ll> #define pli pair<ll, int> #define pll pair<ll, ll> #define vpii vector<pair<int, int>> #define vpll vector<pair<ll, ll>> #define vvpii vector<vector<pair<int, int>>> #define vvpll vector<vector<pair<ll, ll>>> using mint = modint998244353; template <typename T> void debug(T e) { cerr << e << endl; } template <typename T> void debug(vector<T> &v) { rep(i, v.size()) { cerr << v[i] << " "; } cerr << endl; } template <typename T> void debug(vector<vector<T>> &v) { rep(i, v.size()) { rep(j, v[i].size()) { cerr << v[i][j] << " "; } cerr << endl; } } template <typename T> void debug(vector<pair<T, T>> &v) { rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; } } template <typename T> void debug(set<T> &st) { for (auto itr = st.begin(); itr != st.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(multiset<T> &ms) { for (auto itr = ms.begin(); itr != ms.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(map<T, T> &mp) { for (auto itr = mp.begin(); itr != mp.end(); itr++) { cerr << itr->first << " " << itr->second << endl; } } void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << H << " "; debug_out(T...); } double EPS = 0.000000001; int GaussJordan(vector<vector<double>> &A) { int M = A.size(); int N = A[0].size(); int rank = 0; for (int col = 0; col < N; col++) { int pivot = -1; double ma = EPS; for (int row = rank; row < M; row++) { if (abs(A[row][col]) > ma) { ma = abs(A[row][col]); pivot = row; } } if (pivot == -1) { continue; } swap(A[pivot], A[rank]); double fac = A[rank][col]; for (int col2 = 0; col2 < N; col2++) { A[rank][col2] /= fac; } for (int row = 0; row < M; row++) { if (row != rank && abs(A[row][col]) > EPS) { double fac = A[row][col]; for (int col2 = 0; col2 < N; col2++) { A[row][col2] -= A[rank][col2] * fac; } } } rank++; } return rank; } int main() { int L, M, N; cin >> L >> M >> N; vector<vector<int>> A(L, vector<int>(M)); for (int i = 0; i < L; i++) { for (int j = 0; j < M; j++) { cin >> A[i][j]; } } vector<vector<int>> B(M, vector<int>(N)); for (int i = 0; i < M; i++) { for (int j = 0; j < N; j++) { cin >> B[i][j]; } } vector<vector<int>> C(L, vector<int>(N, 0)); for (int i = 0; i < L; i++) { for (int j = 0; j < M; j++) { for (int k = 0; k < N; k++) { C[i][k] += A[i][j] * B[j][k]; } } } // debug(C); bool ans = true; for (int i = 0; i < L; i++) { for (int j = 0; j < N; j++) { if (C[i][j] != 0) { ans = false; } } } vector<vector<double>> dA(L, vector<double>(M)); for (int i = 0; i < L; i++) { for (int j = 0; j < M; j++) { dA[i][j] = (double)A[i][j]; } } vector<vector<double>> dB(M, vector<double>(N)); for (int i = 0; i < M; i++) { for (int j = 0; j < N; j++) { dB[i][j] = (double)B[i][j]; } } // debug(GaussJordan(dB)); // debug(GaussJordan(dA)); if (GaussJordan(dB) != M - GaussJordan(dA)) { ans = false; } if (ans) { cout << "Yes" << endl; } else { cout << "No" << endl; } }