結果
問題 | No.2251 Marking Grid |
ユーザー | kumakuma |
提出日時 | 2023-03-13 19:31:30 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 963 ms / 3,000 ms |
コード長 | 3,095 bytes |
コンパイル時間 | 2,872 ms |
コンパイル使用メモリ | 223,164 KB |
実行使用メモリ | 65,904 KB |
最終ジャッジ日時 | 2024-09-18 07:40:52 |
合計ジャッジ時間 | 10,823 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 799 ms
56,164 KB |
testcase_23 | AC | 963 ms
65,700 KB |
testcase_24 | AC | 16 ms
6,008 KB |
testcase_25 | AC | 962 ms
65,904 KB |
testcase_26 | AC | 130 ms
17,548 KB |
testcase_27 | AC | 467 ms
48,576 KB |
testcase_28 | AC | 12 ms
5,376 KB |
testcase_29 | AC | 501 ms
48,644 KB |
testcase_30 | AC | 99 ms
15,040 KB |
testcase_31 | AC | 60 ms
11,248 KB |
testcase_32 | AC | 23 ms
6,388 KB |
testcase_33 | AC | 573 ms
49,204 KB |
testcase_34 | AC | 32 ms
8,832 KB |
testcase_35 | AC | 213 ms
26,224 KB |
testcase_36 | AC | 300 ms
27,904 KB |
testcase_37 | AC | 454 ms
48,284 KB |
testcase_38 | AC | 13 ms
5,376 KB |
testcase_39 | AC | 9 ms
5,376 KB |
testcase_40 | AC | 186 ms
26,040 KB |
testcase_41 | AC | 70 ms
14,532 KB |
ソースコード
#include <bits/stdc++.h> // #include <atcoder/modint> #define rng(a) a.begin(),a.end() #define rrng(a) a.rbegin(),a.rend() #define INF 2000000000000000000 #define ll long long #define ull unsigned long long #define ld long double #define pll pair<ll, ll> using namespace std; template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } const double PI = 3.141592653589793; // ============union_find_tree=============== struct union_find { vector<ll> par; vector<ll> tree_rank; vector<ll> num; union_find(ll n) { par = vector<ll>(n); num = vector<ll>(n, 1); tree_rank = vector<ll>(n); for (ll i = 0; i < n; ++i) { par.at(i) = i; tree_rank.at(i) = 0; } } ll find(ll x) { if (par.at(x) == x) { return x; } else { return par.at(x) = find(par.at(x)); } } ll get_num(ll x) { return num.at(find(x)); } void unite(ll x, ll y) { x = find(x); y = find(y); if (x == y) { return; } if (tree_rank.at(x) < tree_rank.at(y)) { par.at(x) = y; num.at(y) = num.at(x) + num.at(y); } else { par.at(y) = x; num.at(x) = num.at(x) + num.at(y); if (tree_rank.at(x) == tree_rank.at(y)) { tree_rank.at(x)++; } } } bool same(ll x, ll y) { return find(x) == find(y); } }; // ======================================= ll mod = 998244353; //=============modinv============================ ll modinv(ll a, ll m = mod) { ll b = m, u = 1, v = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } //================================================= int main() { ios::sync_with_stdio(false); cin.tie(nullptr); ll H, W; cin >> H >> W; vector<ll> power(H + W + 1, 1); for (ll i = 0; i < H + W; ++i) { power.at(i + 1) = power.at(i) * 2 % mod; } vector<vector<ll>> A(H, vector<ll>(W)); vector<vector<ll>> num; for (ll i = 0; i < H; ++i) { for (ll j = 0; j < W; ++j) { cin >> A.at(i).at(j); num.push_back({A.at(i).at(j), i, j}); } } sort(rrng(num)); ll r_num = W, c_num = H; vector<bool> row(W, false); vector<bool> col(H, false); ll ans = 0; vector<vector<ll>> already(H); union_find uf(W); for (ll i = 0; i < num.size(); ++i) { vector<ll> n = num.at(i); ll h = n.at(1), w = n.at(2); if (already.at(h).size() != 0) { ll nw = already.at(h).at((ll)already.at(h).size() - 1); if (!uf.same(w, nw)) { r_num -= 1; } else { continue; } uf.unite(w, nw); } already.at(h).push_back(w); if (!col.at(h)) { col.at(h) = true; c_num -= 1; } ans += (n.at(0) * power.at(r_num) % mod) * power.at(c_num) % mod; ans %= mod; } ans *= modinv(2); ans %= mod; cout << ans << "\n"; } //0011 //1100 //1100 //0011 //0101 //1010 //1010 //0101