結果
問題 | No.1838 Modulo Straight |
ユーザー | ei1333333 |
提出日時 | 2022-02-11 22:07:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 4,199 bytes |
コンパイル時間 | 4,473 ms |
コンパイル使用メモリ | 264,788 KB |
実行使用メモリ | 816,156 KB |
最終ジャッジ日時 | 2024-06-27 18:59:59 |
合計ジャッジ時間 | 9,286 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 23 ms
12,800 KB |
testcase_04 | AC | 24 ms
12,672 KB |
testcase_05 | AC | 29 ms
13,184 KB |
testcase_06 | AC | 31 ms
13,440 KB |
testcase_07 | AC | 32 ms
13,952 KB |
testcase_08 | AC | 27 ms
12,672 KB |
testcase_09 | AC | 32 ms
14,592 KB |
testcase_10 | AC | 29 ms
14,976 KB |
testcase_11 | MLE | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; struct trie_nod_idx { trie_nod_idx *t[2]; int c[2]; trie_nod_idx() { t[0] = t[1] = NULL; c[0] = c[1] = 0; } }; struct trie_idx { trie_nod_idx *root; trie_idx() { root = new trie_nod_idx(); } inline void insert(int &x) { bool index; trie_nod_idx *curr = root; for(int i = 17; i >= 0; i--) { index = (((1 << i) & x) != 0); curr->c[index]++; if(curr->t[index] == NULL) { curr->t[index] = new trie_nod_idx(); } curr = curr->t[index]; } } inline int greater(int &x) { int cnt = 0; bool index; trie_nod_idx *curr = root; for(int i = 17; i >= 0 && curr != NULL; i--) { index = (((1 << i) & x) != 0); if(!index) cnt += curr->c[1]; curr = curr->t[index]; } return cnt; } inline int less(int &x) { int cnt = 0; bool index; trie_nod_idx *curr = root; for(int i = 17; i >= 0 && curr != NULL; i--) { index = (((1 << i) & x) != 0); if(index) cnt += curr->c[0]; curr = curr->t[index]; } return cnt; } }; struct trie_nod { trie_nod *t[2]; int c[2]; vector< int > idx; trie_idx removed; trie_idx added; trie_nod() { t[0] = t[1] = NULL; c[0] = c[1] = 0; } }; struct trie { trie_nod *root = new trie_nod(); inline int insert_f(int x, int idx) { bool index; int cnt = 0; trie_nod *curr = root; for(int i = 19; i >= 0; i--) { index = (((1 << i) & x) != 0); if(!index) cnt += curr->c[1]; curr->c[index]++; if(index) { curr->idx.push_back(idx); } if(curr->t[index] == NULL) { curr->t[index] = new trie_nod(); } curr = curr->t[index]; } return cnt; } inline void insert(int x, int idx) { bool index; trie_nod *curr = root; for(int i = 19; i >= 0; i--) { index = (((1 << i) & x) != 0); if(index) { curr->added.insert(idx); } if(curr->t[index] == NULL) { curr->t[index] = new trie_nod(); } curr = curr->t[index]; } } inline void remove(int x, int idx) { bool index; trie_nod *curr = root; for(int i = 19; i >= 0; i--) { index = (((1 << i) & x) != 0); if(index) { curr->removed.insert(idx); } curr = curr->t[index]; } } inline int greater_a(int x, int idx) { int cnt = 0; bool index; trie_nod *curr = root; for(int i = 19; i >= 0 && curr != NULL; i--) { index = (((1 << i) & x) != 0); if(!index) { cnt += curr->idx.end() - upper_bound(curr->idx.begin(), curr->idx.end(), idx); cnt += curr->added.greater(idx); cnt -= curr->removed.greater(idx); } curr = curr->t[index]; } return cnt; } inline int greater_b(int x, int idx) { int cnt = 0; bool index; trie_nod *curr = root; for(int i = 19; i >= 0 && curr != NULL; i--) { index = (((1 << i) & x) != 0); if(!index) { cnt += lower_bound(curr->idx.begin(), curr->idx.end(), idx) - curr->idx.begin(); cnt += curr->added.less(idx); cnt -= curr->removed.less(idx); } curr = curr->t[index]; } return cnt; } inline int between_a(int x, int y, int idx) { return greater_a(x - 1, idx) - greater_a(y, idx); } inline int between_b(int x, int y, int idx) { return greater_b(x - 1, idx) - greater_b(y, idx); } }; int main() { int M, K; cin >> M >> K; vector< int > A(M * K); for(auto &a: A) cin >> a; vector D(M, vector< int >()); { for(int i = 0; i < M * K; i++) { D[A[i]].emplace_back(i); A[i] += 2 * (D[A[i]].size() - 1) * M; } } int64_t now = 0; trie tr; for(int i = 0; i < M * K; i++) { A[i]++; now += tr.insert_f(A[i], i); } int64_t ret = now; for(int i = 0; i < M; i++) { for(auto &x: D[i]) { int y = A[x] + M; now -= tr.between_b(A[x] + 1, y, x); now += tr.between_a(A[x], y - 1, x); tr.remove(A[x], x); tr.insert(y, x); A[x] = y; } ret = min(ret, now); } cout << ret << "\n"; }