結果
問題 | No.5001 排他的論理和でランニング |
ユーザー | treeone |
提出日時 | 2018-03-17 02:48:53 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 1,485 ms / 1,500 ms |
コード長 | 3,673 bytes |
コンパイル時間 | 1,680 ms |
実行使用メモリ | 15,344 KB |
スコア | 51,361,906 |
最終ジャッジ日時 | 2020-03-12 19:55:55 |
ジャッジサーバーID (参考情報) |
judge8 / |
純コード判定しない問題か言語 |
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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 | 1,478 ms
13,864 KB |
testcase_01 | AC | 1,470 ms
5,380 KB |
testcase_02 | AC | 1,477 ms
6,200 KB |
testcase_03 | AC | 1,476 ms
8,832 KB |
testcase_04 | AC | 1,482 ms
14,928 KB |
testcase_05 | AC | 1,474 ms
7,168 KB |
testcase_06 | AC | 1,478 ms
9,412 KB |
testcase_07 | AC | 1,472 ms
10,592 KB |
testcase_08 | AC | 1,484 ms
14,056 KB |
testcase_09 | AC | 1,473 ms
5,380 KB |
testcase_10 | AC | 1,478 ms
6,804 KB |
testcase_11 | AC | 1,479 ms
8,364 KB |
testcase_12 | AC | 1,474 ms
6,480 KB |
testcase_13 | AC | 1,479 ms
14,268 KB |
testcase_14 | AC | 1,480 ms
9,932 KB |
testcase_15 | AC | 1,478 ms
7,020 KB |
testcase_16 | AC | 1,475 ms
5,376 KB |
testcase_17 | AC | 1,473 ms
6,244 KB |
testcase_18 | AC | 1,477 ms
9,848 KB |
testcase_19 | AC | 1,477 ms
7,596 KB |
testcase_20 | AC | 1,479 ms
0 KB |
testcase_21 | AC | 1,476 ms
6,396 KB |
testcase_22 | AC | 1,474 ms
5,376 KB |
testcase_23 | AC | 1,477 ms
5,380 KB |
testcase_24 | AC | 1,474 ms
7,724 KB |
testcase_25 | AC | 1,474 ms
12,308 KB |
testcase_26 | AC | 1,475 ms
11,208 KB |
testcase_27 | AC | 1,475 ms
8,376 KB |
testcase_28 | AC | 1,478 ms
10,464 KB |
testcase_29 | AC | 1,476 ms
11,792 KB |
testcase_30 | AC | 1,470 ms
5,380 KB |
testcase_31 | AC | 1,480 ms
10,300 KB |
testcase_32 | AC | 1,479 ms
6,508 KB |
testcase_33 | AC | 1,484 ms
14,460 KB |
testcase_34 | AC | 1,480 ms
15,344 KB |
testcase_35 | AC | 1,477 ms
10,340 KB |
testcase_36 | AC | 1,478 ms
13,636 KB |
testcase_37 | AC | 1,485 ms
11,192 KB |
testcase_38 | AC | 1,475 ms
6,304 KB |
testcase_39 | AC | 1,474 ms
7,356 KB |
testcase_40 | AC | 1,476 ms
8,424 KB |
testcase_41 | AC | 1,480 ms
5,380 KB |
testcase_42 | AC | 1,477 ms
8,264 KB |
testcase_43 | AC | 1,478 ms
8,796 KB |
testcase_44 | AC | 1,476 ms
12,304 KB |
testcase_45 | AC | 1,478 ms
13,264 KB |
testcase_46 | AC | 1,477 ms
12,660 KB |
testcase_47 | AC | 1,475 ms
7,648 KB |
testcase_48 | AC | 1,472 ms
6,396 KB |
testcase_49 | AC | 1,485 ms
12,516 KB |
ソースコード
#include <bits/stdc++.h> #define rep(i, a, n) for(int i = a; i < n; i++) #define REP(i, n) rep(i, 0, n) #define repb(i, a, b) for(int i = a; i >= b; i--) #define all(a) a.begin(), a.end() #define int long long #define chmax(x, y) x = max(x, y) #define chmin(x, y) x = min(x, y) using namespace std; typedef pair<int, int> P; const int mod = 1000000007; const int INF = 1e12; unsigned w; unsigned xor128() { static unsigned x = 123456789, y = 362436069, z = 521288629/*, w = 88675123*/; unsigned t = (x ^ (x << 11)); x = y; y = z; z = w; return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8))); } class Timer { private: clock_t start; public: Timer() { start = clock(); } double sec() { clock_t end = clock(); return (double) (end - start) / CLOCKS_PER_SEC; } }; const double TimeLimit = 1.450; Timer timer; void display(int now){ repb(i, 19, 0){ if(now & (1LL << i)) cerr << "1"; else cerr << "0"; } cerr << endl; return; } signed main(){ ios::sync_with_stdio(false); cin.tie(0); clock_t start, end; start = clock(); random_device rnd; mt19937 mt((int)time(0)); w = mt(); int n, m; cin >> n >> m; vector<int> a(n); vector<int> d[20], e[20]; rep(i, 0, n){ cin >> a[i]; } sort(all(a)); rep(i, 0, n){ bool f = true; repb(j, 19, 0){ if(a[i] & (1LL << j)){ if(f){ d[j].push_back(i); f = false; } e[j].push_back(i); } } } // vector<int> ans; set<int> st; int now = 0; repb(i, 19, 0){ if(st.size() == m) break; int limit = min(m / 15, (int)d[i].size()); limit = min(limit, m - (int)st.size()); if(now & (1LL << i)){ if(limit % 2) limit--; }else{ if(limit % 2 == 0) limit--; } cerr << i << " " << limit << " " << (now & (1LL << i)) << endl; rep(j, 0, limit){ now ^= a[d[i][j]]; st.insert(d[i][j]); } } rep(i, 0, 20){ rep(j, 0, d[i].size()){ if(st.size() == m) break; if(!st.count(d[i][j])){ now ^= a[d[i][j]]; // ans.push_back(i); st.insert(d[i][j]); } } } cerr << st.size() << " " << now << endl; display(now); int cnt = 0, grow = 0, high = -1; while(1){ double tmp = timer.sec(); if(tmp > TimeLimit){ break; } // if(high == -1){ // repb(i, 19, 0){ // if(now & (1LL << i)) continue; // high = i; break; // } // if(high == -1) break; // } int id = xor128() % n; // if(!st.count(id)) continue; // if(d[high].size() == 0) continue; // int id2 = xor128() % (int)(d[high].size()); // if(st.count(id2)) continue; // id2 = d[high][id2]; int id2 = xor128() % n; if(!(st.count(id) ^ st.count(id2))) continue; if(st.count(id2)) swap(id, id2); cnt++; int tmp2 = now ^ a[id] ^ a[id2]; if(tmp2 > now){ now = tmp2; st.erase(id); st.insert(id2); grow++; } // if((int)(tmp * 1000) % 1000 <= 20){ // cerr << tmp << " " << now << endl; // } } int sum = 0; for(auto it = st.begin(); it != st.end(); it++){ if(it != st.begin()) cout << ' '; cout << a[*it]; sum ^= a[*it]; } cout << endl; cerr << now << " " << sum << " " << cnt << " " << grow << endl; display(now); }