結果
問題 | No.5005 3-SAT |
ユーザー | bin101 |
提出日時 | 2024-02-28 00:53:29 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,984 ms / 2,000 ms |
コード長 | 19,569 bytes |
コンパイル時間 | 3,555 ms |
コンパイル使用メモリ | 255,088 KB |
実行使用メモリ | 7,936 KB |
スコア | 103,484 |
最終ジャッジ日時 | 2024-02-28 00:56:57 |
合計ジャッジ時間 | 208,146 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge12 |
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 | 1,984 ms
6,676 KB |
testcase_01 | AC | 1,983 ms
6,908 KB |
testcase_02 | AC | 1,983 ms
6,676 KB |
testcase_03 | AC | 1,984 ms
6,676 KB |
testcase_04 | AC | 1,984 ms
6,676 KB |
testcase_05 | AC | 1,983 ms
6,676 KB |
testcase_06 | AC | 1,984 ms
6,784 KB |
testcase_07 | AC | 1,983 ms
6,676 KB |
testcase_08 | AC | 1,983 ms
6,912 KB |
testcase_09 | AC | 1,983 ms
6,784 KB |
testcase_10 | AC | 1,984 ms
7,168 KB |
testcase_11 | AC | 1,983 ms
6,676 KB |
testcase_12 | AC | 1,984 ms
6,676 KB |
testcase_13 | AC | 1,984 ms
7,936 KB |
testcase_14 | AC | 1,983 ms
6,912 KB |
testcase_15 | AC | 1,984 ms
7,128 KB |
testcase_16 | AC | 1,984 ms
6,676 KB |
testcase_17 | AC | 1,984 ms
7,296 KB |
testcase_18 | AC | 1,983 ms
6,676 KB |
testcase_19 | AC | 1,983 ms
6,912 KB |
testcase_20 | AC | 1,984 ms
6,676 KB |
testcase_21 | AC | 1,982 ms
6,748 KB |
testcase_22 | AC | 1,984 ms
7,508 KB |
testcase_23 | AC | 1,983 ms
7,296 KB |
testcase_24 | AC | 1,983 ms
6,776 KB |
testcase_25 | AC | 1,984 ms
7,168 KB |
testcase_26 | AC | 1,984 ms
6,676 KB |
testcase_27 | AC | 1,984 ms
6,912 KB |
testcase_28 | AC | 1,983 ms
6,676 KB |
testcase_29 | AC | 1,983 ms
7,296 KB |
testcase_30 | AC | 1,984 ms
6,912 KB |
testcase_31 | AC | 1,984 ms
6,676 KB |
testcase_32 | AC | 1,983 ms
6,676 KB |
testcase_33 | AC | 1,984 ms
6,784 KB |
testcase_34 | AC | 1,983 ms
7,276 KB |
testcase_35 | AC | 1,983 ms
6,676 KB |
testcase_36 | AC | 1,984 ms
6,676 KB |
testcase_37 | AC | 1,984 ms
6,676 KB |
testcase_38 | AC | 1,983 ms
6,676 KB |
testcase_39 | AC | 1,983 ms
6,912 KB |
testcase_40 | AC | 1,984 ms
6,676 KB |
testcase_41 | AC | 1,983 ms
7,408 KB |
testcase_42 | AC | 1,984 ms
7,364 KB |
testcase_43 | AC | 1,983 ms
7,040 KB |
testcase_44 | AC | 1,983 ms
6,676 KB |
testcase_45 | AC | 1,983 ms
6,676 KB |
testcase_46 | AC | 1,984 ms
7,120 KB |
testcase_47 | AC | 1,984 ms
7,296 KB |
testcase_48 | AC | 1,983 ms
6,760 KB |
testcase_49 | AC | 1,983 ms
6,676 KB |
testcase_50 | AC | 1,984 ms
6,676 KB |
testcase_51 | AC | 1,984 ms
6,676 KB |
testcase_52 | AC | 1,983 ms
6,676 KB |
testcase_53 | AC | 1,983 ms
6,912 KB |
testcase_54 | AC | 1,982 ms
6,676 KB |
testcase_55 | AC | 1,983 ms
6,676 KB |
testcase_56 | AC | 1,984 ms
6,676 KB |
testcase_57 | AC | 1,983 ms
6,676 KB |
testcase_58 | AC | 1,984 ms
6,676 KB |
testcase_59 | AC | 1,983 ms
7,552 KB |
testcase_60 | AC | 1,984 ms
6,868 KB |
testcase_61 | AC | 1,983 ms
6,676 KB |
testcase_62 | AC | 1,984 ms
6,784 KB |
testcase_63 | AC | 1,984 ms
7,296 KB |
testcase_64 | AC | 1,983 ms
6,676 KB |
testcase_65 | AC | 1,983 ms
6,676 KB |
testcase_66 | AC | 1,984 ms
6,676 KB |
testcase_67 | AC | 1,984 ms
6,784 KB |
testcase_68 | AC | 1,983 ms
6,676 KB |
testcase_69 | AC | 1,983 ms
7,232 KB |
testcase_70 | AC | 1,984 ms
6,896 KB |
testcase_71 | AC | 1,984 ms
6,676 KB |
testcase_72 | AC | 1,984 ms
6,912 KB |
testcase_73 | AC | 1,984 ms
7,508 KB |
testcase_74 | AC | 1,983 ms
6,676 KB |
testcase_75 | AC | 1,983 ms
6,676 KB |
testcase_76 | AC | 1,983 ms
6,676 KB |
testcase_77 | AC | 1,983 ms
6,676 KB |
testcase_78 | AC | 1,984 ms
7,040 KB |
testcase_79 | AC | 1,983 ms
6,676 KB |
testcase_80 | AC | 1,984 ms
7,424 KB |
testcase_81 | AC | 1,983 ms
7,296 KB |
testcase_82 | AC | 1,983 ms
6,676 KB |
testcase_83 | AC | 1,984 ms
6,676 KB |
testcase_84 | AC | 1,984 ms
7,172 KB |
testcase_85 | AC | 1,984 ms
7,792 KB |
testcase_86 | AC | 1,983 ms
6,676 KB |
testcase_87 | AC | 1,984 ms
7,168 KB |
testcase_88 | AC | 1,982 ms
6,676 KB |
testcase_89 | AC | 1,983 ms
7,040 KB |
testcase_90 | AC | 1,984 ms
6,676 KB |
testcase_91 | AC | 1,984 ms
6,848 KB |
testcase_92 | AC | 1,984 ms
6,676 KB |
testcase_93 | AC | 1,984 ms
7,516 KB |
testcase_94 | AC | 1,983 ms
7,680 KB |
testcase_95 | AC | 1,983 ms
6,676 KB |
testcase_96 | AC | 1,984 ms
6,676 KB |
testcase_97 | AC | 1,984 ms
6,912 KB |
testcase_98 | AC | 1,983 ms
6,676 KB |
testcase_99 | AC | 1,983 ms
6,900 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; using ll=long long int; struct Timer{ chrono::high_resolution_clock::time_point st; chrono::high_resolution_clock::time_point now; int cnt=0; float local; Timer(){ #ifndef ONLINE_JUDGE local=1.0; #endif start(); } void start(){ st=chrono::high_resolution_clock::now(); } int span(){ cnt++; if((cnt&1023)==0 or true){ now=chrono::high_resolution_clock::now(); } return chrono::duration_cast<chrono::milliseconds>(now-st).count(); } }; Timer TIME; #ifndef TOGASAT_HPP #define TOGASAT_HPP /************************************************************ MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson Copyright (c) 2007-2010 Niklas Sorensson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ************************************************************/ #include <assert.h> #include <math.h> #include <stdio.h> #include <algorithm> #include <fstream> #include <iostream> #include <list> #include <queue> #include <set> #include <sstream> #include <string> #include <vector> #include <unordered_map> #include <unordered_set> // SAT Solver // CDCL Solver // Author togatoga // https://github.com/togatoga/togasat namespace togasat { using Var = int; using CRef = int; using lbool = int; const CRef CRef_Undef = -1; class Solver { private: const lbool l_True = 0; const lbool l_False = 1; const lbool l_Undef = 2; const int var_Undef = -1; // Literal struct Lit { int x; inline bool operator==(Lit p) const { return x == p.x; } inline bool operator!=(Lit p) const { return x != p.x; } inline bool operator<(Lit p) const { return x < p.x; } inline Lit operator~() { Lit q; q.x = x ^ 1; return q; } }; inline Lit mkLit(Var var, bool sign) { Lit p; p.x = var + var + sign; return p; }; inline bool sign(Lit p) const { return p.x & 1; } inline int var(Lit p) const { return p.x >> 1; } inline int toInt(Var v) { return v; } inline int toInt(Lit p) { return p.x; } inline Lit toLit(int x) { Lit p; p.x = x; return p; } const Lit lit_Undef = {-2}; const Lit lit_Error = {-1}; // lifted boolean // VarData struct VarData { CRef reason; int level; }; inline VarData mkVarData(CRef cr, int l) { VarData d = {cr, l}; return d; } // Watcher struct Watcher { CRef cref; Lit blocker; Watcher() {} Watcher(CRef cr, Lit p) : cref(cr), blocker(p) {} bool operator==(const Watcher &w) const { return cref == w.cref; } bool operator!=(const Watcher &w) const { return cref != w.cref; } }; // Clause class Clause { public: struct { bool learnt; int size; } header; std::vector<Lit> data; //(x1 v x2 v not x3) Clause() {} Clause(const std::vector<Lit> &ps, bool learnt) { header.learnt = learnt; header.size = ps.size(); // data = move(ps); data.resize(header.size); for (int i = 0; i < ps.size(); i++) { data[i] = ps[i]; // //data.emplace_back(ps[i]); } } int size() const { return header.size; } bool learnt() const { return header.learnt; } Lit &operator[](int i) { return data[i]; } Lit operator[](int i) const { return data[i]; } }; CRef allocClause(std::vector<Lit> &ps, bool learnt = false) { static CRef res = 0; ca[res] = std::move(Clause(ps, learnt)); return res++; } Var newVar(bool sign = true, bool dvar = true) { int v = nVars(); assigns.emplace_back(l_Undef); vardata.emplace_back(mkVarData(CRef_Undef, 0)); activity.emplace_back(0.0); seen.push_back(false); polarity.push_back(sign); decision.push_back(0); setDecisionVar(v, dvar); return v; } bool addClause_(std::vector<Lit> &ps) { // std::sort(ps.begin(), ps.end()); // empty clause if (ps.size() == 0) { return false; } else if (ps.size() == 1) { uncheckedEnqueue(ps[0]); } else { CRef cr = allocClause(ps, false); // clauses.insert(cr); attachClause(cr); } return true; } void attachClause(CRef cr) { const Clause &c = ca[cr]; assert(c.size() > 1); watches[(~c[0]).x].emplace_back(Watcher(cr, c[1])); watches[(~c[1]).x].emplace_back(Watcher(cr, c[0])); } // Input void readClause(const std::string &line, std::vector<Lit> &lits) { lits.clear(); int parsed_lit, var; parsed_lit = var = 0; bool neg = false; std::stringstream ss(line); while (ss) { int val; ss >> val; if (val == 0) break; var = abs(val) - 1; while (var >= nVars()) { newVar(); } lits.emplace_back(val > 0 ? mkLit(var, false) : mkLit(var, true)); } } std::unordered_map<CRef, Clause> ca; // store clauses std::unordered_set<CRef> clauses; // original problem; std::unordered_set<CRef> learnts; std::unordered_map<int, std::vector<Watcher>> watches; std::vector<VarData> vardata; // store reason and level for each variable std::vector<bool> polarity; // The preferred polarity of each variable std::vector<bool> decision; std::vector<bool> seen; // Todo int qhead; std::vector<Lit> trail; std::vector<int> trail_lim; // Todo rename(not heap) std::set<std::pair<double, Var>> order_heap; std::vector<double> activity; double var_inc; std::vector<Lit> model; std::vector<Lit> conflict; int nVars() const { return vardata.size(); } int decisionLevel() const { return trail_lim.size(); } void newDecisionLevel() { trail_lim.emplace_back(trail.size()); } inline CRef reason(Var x) const { return vardata[x].reason; } inline int level(Var x) const { return vardata[x].level; } inline void varBumpActivity(Var v) { std::pair<double, Var> p = std::make_pair(activity[v], v); activity[v] += var_inc; if (order_heap.erase(p) == 1) { order_heap.emplace(std::make_pair(activity[v], v)); } if (activity[v] > 1e100) { // Rescale std::set<std::pair<double, Var>> tmp_order; tmp_order = std::move(order_heap); order_heap.clear(); for (int i = 0; i < nVars(); i++) { activity[i] *= 1e-100; } for (auto &val : tmp_order) { order_heap.emplace(std::make_pair(activity[val.second], val.second)); } var_inc *= 1e-100; } } bool satisfied(const Clause &c) const { for (int i = 0; i < c.size(); i++) { if (value(c[i]) == l_True) { return true; } } return false; } lbool value(Var p) const { return assigns[p]; } lbool value(Lit p) const { if (assigns[var(p)] == l_Undef) { return l_Undef; } return assigns[var(p)] ^ sign(p); } void setDecisionVar(Var v, bool b) { decision[v] = b; order_heap.emplace(std::make_pair(0.0, v)); } void uncheckedEnqueue(Lit p, CRef from = CRef_Undef) { assert(value(p) == l_Undef); assigns[var(p)] = sign(p); vardata[var(p)] = std::move(mkVarData(from, decisionLevel())); trail.emplace_back(p); } // decision Lit pickBranchLit() { Var next = var_Undef; while (next == var_Undef or value(next) != l_Undef) { if (order_heap.empty()) { next = var_Undef; break; } else { auto p = *order_heap.rbegin(); next = p.second; order_heap.erase(p); } } return next == var_Undef ? lit_Undef : mkLit(next, polarity[next]); } // clause learning void analyze(CRef confl, std::vector<Lit> &out_learnt, int &out_btlevel) { int pathC = 0; Lit p = lit_Undef; int index = trail.size() - 1; out_learnt.emplace_back(mkLit(0, false)); do { assert(confl != CRef_Undef); Clause &c = ca[confl]; for (int j = (p == lit_Undef) ? 0 : 1; j < c.size(); j++) { Lit q = c[j]; if (not seen[var(q)] and level(var(q)) > 0) { varBumpActivity(var(q)); seen[var(q)] = 1; if (level(var(q)) >= decisionLevel()) { pathC++; } else { out_learnt.emplace_back(q); } } } while (not seen[var(trail[index--])]) ; p = trail[index + 1]; confl = reason(var(p)); seen[var(p)] = 0; pathC--; } while (pathC > 0); out_learnt[0] = ~p; // unit clause if (out_learnt.size() == 1) { out_btlevel = 0; } else { int max_i = 1; for (int i = 2; i < out_learnt.size(); i++) { if (level(var(out_learnt[i])) > level(var(out_learnt[max_i]))) { max_i = i; } } Lit p = out_learnt[max_i]; out_learnt[max_i] = out_learnt[1]; out_learnt[1] = p; out_btlevel = level(var(p)); } for (int i = 0; i < out_learnt.size(); i++) { seen[var(out_learnt[i])] = false; } } // backtrack void cancelUntil(int level) { if (decisionLevel() > level) { for (int c = trail.size() - 1; c >= trail_lim[level]; c--) { Var x = var(trail[c]); assigns[x] = l_Undef; polarity[x] = sign(trail[c]); order_heap.emplace(std::make_pair(activity[x], x)); } qhead = trail_lim[level]; trail.erase(trail.end() - (trail.size() - trail_lim[level]), trail.end()); trail_lim.erase(trail_lim.end() - (trail_lim.size() - level), trail_lim.end()); } } CRef propagate() { CRef confl = CRef_Undef; int num_props = 0; while (qhead < trail.size()) { Lit p = trail[qhead++]; // 'p' is enqueued fact to propagate. std::vector<Watcher> &ws = watches[p.x]; std::vector<Watcher>::iterator i, j, end; num_props++; for (i = j = ws.begin(), end = i + ws.size(); i != end;) { // Try to avoid inspecting the clause: Lit blocker = i->blocker; if (value(blocker) == l_True) { *j++ = *i++; continue; } CRef cr = i->cref; Clause &c = ca[cr]; Lit false_lit = ~p; if (c[0] == false_lit) c[0] = c[1], c[1] = false_lit; assert(c[1] == false_lit); i++; Lit first = c[0]; Watcher w = Watcher(cr, first); if (first != blocker && value(first) == l_True) { *j++ = w; continue; } // Look for new watch: for (int k = 2; k < c.size(); k++) if (value(c[k]) != l_False) { c[1] = c[k]; c[k] = false_lit; watches[(~c[1]).x].emplace_back(w); goto NextClause; } *j++ = w; if (value(first) == l_False) { // conflict confl = cr; qhead = trail.size(); while (i < end) *j++ = *i++; } else { uncheckedEnqueue(first, cr); } NextClause:; } int size = i - j; ws.erase(ws.end() - size, ws.end()); } return confl; } static double luby(double y, int x) { // Find the finite subsequence that contains index 'x', and the // size of that subsequence: int size, seq; for (size = 1, seq = 0; size < x + 1; seq++, size = 2 * size + 1) ; while (size - 1 != x) { size = (size - 1) >> 1; seq--; x = x % size; } return pow(y, seq); } lbool search(int nof_conflicts) { int backtrack_level; std::vector<Lit> learnt_clause; learnt_clause.emplace_back(mkLit(-1, false)); int conflictC = 0; while (true) { if(TIME.span()>1980){ return l_False; } CRef confl = propagate(); if (confl != CRef_Undef) { // CONFLICT conflictC++; if (decisionLevel() == 0) return l_False; learnt_clause.clear(); analyze(confl, learnt_clause, backtrack_level); cancelUntil(backtrack_level); if (learnt_clause.size() == 1) { uncheckedEnqueue(learnt_clause[0]); } else { CRef cr = allocClause(learnt_clause, true); // learnts.insert(cr); attachClause(cr); uncheckedEnqueue(learnt_clause[0], cr); } // varDecay var_inc *= 1.05; } else { // NO CONFLICT if ((nof_conflicts >= 0 and conflictC >= nof_conflicts)) { cancelUntil(0); return l_Undef; } Lit next = pickBranchLit(); if (next == lit_Undef) { return l_True; } newDecisionLevel(); uncheckedEnqueue(next); } } }; public: std::vector<lbool> assigns; // The current assignments (ex assigns[0] = 0 -> // X1 = True, assigns[1] = 1 -> X2 = False) lbool answer; // SATISFIABLE 0 UNSATISFIABLE 1 UNKNOWN 2 Solver() { qhead = 0; } void parseDimacsProblem(std::string problem_name) { std::vector<Lit> lits; int vars = 0; int clauses = 0; std::string line; std::ifstream ifs(problem_name, std::ios_base::in); while (ifs.good()) { getline(ifs, line); if (line.size() > 0) { if (line[0] == 'p') { sscanf(line.c_str(), "p cnf %d %d", &vars, &clauses); } else if (line[0] == 'c' or line[0] == 'p') { continue; } else { readClause(line, lits); if (lits.size() > 0) addClause_(lits); } } } ifs.close(); } lbool solve() { model.clear(); conflict.clear(); lbool status = l_Undef; answer = l_Undef; var_inc = 1.01; int curr_restarts = 0; double restart_inc = 2; double restart_first = 100; while (status == l_Undef) { double rest_base = luby(restart_inc, curr_restarts); status = search(rest_base * restart_first); curr_restarts++; } answer = status; return status; }; void addClause(std::vector<int> &clause) { std::vector<Lit> lits; lits.resize(clause.size()); for (int i = 0; i < clause.size(); i++) { int var = abs(clause[i]) - 1; while (var >= nVars()) newVar(); lits[i] = std::move((clause[i] > 0 ? mkLit(var, false) : mkLit(var, true))); } addClause_(lits); } void printAnswer() { if (answer == 0) { std::cout << "SAT" << std::endl; for (int i = 0; i < assigns.size(); i++) { if (assigns[i] == 0) { std::cout << (i + 1) << " "; } else { std::cout << -(i + 1) << " "; } } std::cout << "0" << std::endl; } else { std::cout << "UNSAT" << std::endl; } } }; } // namespace togasat #endif // TOGASAT_HPP constexpr int limit = 1980; // https://github.com/not522/CompetitiveProgramming/blob/master/include/math/sat.hpp namespace not_522 { class SatSolver { private: vector<vector<pair<int, bool>>> cl; map<pair<int, bool>, vector<int>> w; vector<int> reason, level, que, activity; int n, qi; void enqueue(int v, bool a, int r = -1) { assigns[v] = a; reason[v] = r; level[v] = (que.empty() ? 1 : level[que.back()]); que.emplace_back(v); } void add(const vector<pair<int, bool>> &clause) { for (auto l : clause) { w[l].emplace_back(cl.size()); } cl.emplace_back(clause); } void analyze(int confl) { int i = que.size(), lv = 1; unordered_set<int> used; vector<pair<int, bool>> learnt; for (int cnt = 0; cnt || used.empty(); --cnt) { for (auto q : cl[confl]) { if (!used.emplace(q.first).second) { continue; } activity[q.first] += 1e5; if (level[q.first] == level[que.back()]) { ++cnt; } else { learnt.emplace_back(q); lv = max(lv, level[q.first]); } } while (!used.count(que[--i])) { ; } confl = reason[que[i]]; } learnt.emplace_back(que[i], !assigns[que[i]]); for (; !que.empty() && level[que.back()] > lv; que.pop_back()) { level[que.back()] = 0; } qi = que.size(); enqueue(learnt.back().first, learnt.back().second, cl.size()); add(learnt); } int propagate() { for (; qi < int(que.size()); ++qi) { for (int cr : w[make_pair(que[qi], !assigns[que[qi]])]) { int cnt = 0; for (auto &lit : cl[cr]) { if (level[lit.first] == 0) { activity[lit.first] += 1e3; swap(lit, cl[cr][0]); ++cnt; } else if (assigns[lit.first] == lit.second) { swap(lit, cl[cr][0]); cnt = -1; break; } } if (cnt == 0) { return cr; } if (cnt == 1) { enqueue(cl[cr][0].first, cl[cr][0].second, cr); } } } return -1; } public: vector<bool> assigns; SatSolver(int _n, const vector<vector<pair<int, bool>>> &clauses) : reason(_n), level(_n), activity(_n), n(_n), qi(0), assigns(_n) { for (const auto &clause : clauses) { add(clause); } } bool solve() { while (true) { if (TIME.span() > limit) return false; int confl = propagate(); if (confl != -1) { if (level[que.back()] == 1u) { return false; } for (auto &a : activity) { a /= 1.05; } analyze(confl); } else { int k = -1; for (int i = 0; i < n; ++i) { if (level[i] == 0 && (k == -1 || activity[k] < activity[i])) { k = i; } } if (k == -1) { return true; } enqueue(k, assigns[k]); ++level[k]; } } } }; } // namespace not_522 void solve(){ vector<vector<pair<int,bool>>> cs; for(int i=0;i<2048;i++){ int a,b,c,p,q,r; cin>>a>>b>>c>>p>>q>>r; vector<pair<int,bool>> cc; cc.push_back({a,p}); cc.push_back({b,q}); cc.push_back({c,r}); cs.push_back(cc); } vector<bool> ans(256); int i=950; for(;;){ cerr<<i<<endl; if(TIME.span()>1980) break; auto c=cs; c.resize(i); not_522::SatSolver solver(256,c); auto status=solver.solve(); if(status==0){ //False i-=3; continue; }else{ i+=10; ans=solver.assigns; } } //cout<<ans<<endl; for(int i=255;i>=0;i--){ char c; if(ans[i]) c='1'; else c='0'; cout<<c; } cout<<endl; #ifndef ONLINE_JUDGE cerr<<TIME.span()<<"ms"<<endl; #endif } int main(const int argc,const char** argv){ solve(); }