結果
問題 | No.1954 CHECKER×CHECKER(2) |
ユーザー | t98slider |
提出日時 | 2022-05-20 23:50:54 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 8,480 bytes |
コンパイル時間 | 1,997 ms |
コンパイル使用メモリ | 184,296 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-20 10:15:30 |
合計ジャッジ時間 | 2,834 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | WA | - |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | WA | - |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | WA | - |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 4 ms
5,376 KB |
testcase_14 | WA | - |
testcase_15 | AC | 1 ms
5,376 KB |
testcase_16 | AC | 1 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | WA | - |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | WA | - |
testcase_21 | AC | 4 ms
5,376 KB |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 4 ms
5,376 KB |
testcase_25 | AC | 4 ms
5,376 KB |
testcase_26 | WA | - |
testcase_27 | AC | 3 ms
5,376 KB |
testcase_28 | AC | 4 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | WA | - |
testcase_31 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define rep(i,n) for(int i=0;i<(int)(n);i++) #define drep(i,j,n) for(int i=0;i<(int)(n-1);i++)for(int j=i+1;j<(int)(n);j++) #define trep(i,j,k,n) for(int i=0;i<(int)(n-2);i++)for(int j=i+1;j<(int)(n-1);j++)for(int k=j+1;k<(int)(n);k++) #define codefor int test;scanf("%d",&test);while(test--) #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define yes(ans) if(ans)printf("yes\n");else printf("no\n") #define Yes(ans) if(ans)printf("Yes\n");else printf("No\n") #define YES(ans) if(ans)printf("YES\n");else printf("NO\n") #define popcount(v) __builtin_popcountll(v) #define vector2d(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__)) #define vector3d(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__))) #define vector4d(type,name,h,w,d,...) vector<vector<vector<vector<type>>>>name(h,vector<vector<vector<type>>>(w,vector<vector<type>>(d,vector<type>(__VA_ARGS__)))) using namespace std; using ll = long long; template<class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>; const int MOD=1000000007; const int MOD2=998244353; const int INF=1<<30; const ll INF2=1LL<<60; void scan(int& a){scanf("%d",&a);} void scan(long long& a){scanf("%lld",&a);} template<class T,class L>void scan(pair<T, L>& p){scan(p.first);scan(p.second);} template<class T,class U,class V>void scan(tuple<T,U,V>& p){scan(get<0>(p));scan(get<1>(p));scan(get<2>(p));} template<class T, size_t size> void scan(array<T, size>& a){ for(auto&& i : a) scan(i);} template<class T> void scan(T& a){cin>>a;} template<class T> void scan(vector<T>& vec){for(auto&& it:vec)scan(it);} void in(){} template <class Head, class... Tail> void in(Head& head, Tail&... tail){scan(head);in(tail...);} void print(const int& a){printf("%d",a);} void print(const long long& a){printf("%lld",a);} void print(const double& a){printf("%.15lf",a);} template<class T,class L>void print(const pair<T, L>& p){print(p.first);putchar(' ');print(p.second);} template<class T> void print(const T& a){cout<<a;} template<class T> void print(const vector<T>& vec){if(vec.empty())return;print(vec[0]);for(auto it=vec.begin();++it!= vec.end();){putchar(' ');print(*it);}} void out(){putchar('\n');} template<class T> void out(const T& t){print(t);putchar('\n');} template <class Head, class... Tail> void out(const Head& head,const Tail&... tail){print(head);putchar(' ');out(tail...);} template<class T> void dprint(const T& a){cerr<<a;} template<class T> void dprint(const vector<T>& vec){if(vec.empty())return;cerr<<vec[0];for(auto it=vec.begin();++it!= vec.end();){cerr<<" "<<*it;}} void debug(){cerr<<'\n';} template<class T> void debug(const T& t){dprint(t);cerr<<endl;} template <class Head, class... Tail> void debug(const Head& head, const Tail&... tail){dprint(head);cerr<<" ";debug(tail...);} ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll modpow(ll a, ll b, ll p){ ll ans = 1; while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; } ll modinv(ll a, ll m) {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;} ll updivide(ll a,ll b){return (a+b-1)/b;} template<class T> void chmax(T &a,const T b){if(b>a)a=b;} template<class T> void chmin(T &a,const T b){if(b<a)a=b;} //重み付きUnion_Find(XOR) struct Weighted_dsu { public: Weighted_dsu() : _n(0) {} Weighted_dsu(int n) : _n(n), parent_or_size(n, -1),diff_weight(n,0) {} bool merge(int a, int b, int w) { int x = leader(a), y = leader(b); if(x==y){ if(diff(a,b)==w)return true; return false; } w ^= diff_weight[a], w ^= diff_weight[b]; if (-parent_or_size[x] < -parent_or_size[y]) std::swap(x, y); parent_or_size[x] += parent_or_size[y]; parent_or_size[y] = x; diff_weight[y] ^= w; return true; } int diff(int x, int y) { leader(x),leader(y); return diff_weight[y] ^ diff_weight[x]; } bool same(int a, int b) { return leader(a) == leader(b); } int leader(int a) { if (parent_or_size[a] < 0) return a; int r = leader(parent_or_size[a]); diff_weight[a] ^= diff_weight[parent_or_size[a]]; return parent_or_size[a] = r; } int size(int a) { return -parent_or_size[leader(a)]; } std::vector<std::vector<int>> groups() { std::vector<int> leader_buf(_n), group_size(_n); for (int i = 0; i < _n; i++) { leader_buf[i] = leader(i); group_size[leader_buf[i]]++; } std::vector<std::vector<int>> result(_n); for (int i = 0; i < _n; i++) { result[i].reserve(group_size[i]); } for (int i = 0; i < _n; i++) { result[leader_buf[i]].push_back(i); } result.erase( std::remove_if(result.begin(), result.end(), [&](const std::vector<int>& v) { return v.empty(); }), result.end()); return result; } private: int _n; std::vector<int> parent_or_size; std::vector<int> diff_weight; }; template <size_t MAX_COL> struct BitMatrix{ int H, W; vector<bitset<MAX_COL>> A; BitMatrix(int n) : H(n), W(MAX_COL), A(n) {} const bitset<MAX_COL>& operator[](int k) const { return A[k]; } bitset<MAX_COL>& operator[](int k) { return A[k]; } int gauss_jordan(bool extended = false) { int rank = 0; for(int j = 0; j < W - extended; j++) { int pivot = -1; for(int i = rank; i < H; i++) { if(A[i][j]){ pivot = i; break; } } if(pivot==-1)continue; swap(A[pivot], A[rank]); for (int i = 0 ; i < H ; i++) { if (i != rank && A[i][j])A[i]^=A[rank]; } rank++; } return rank; } pair<int, vector<int>> linear_equation(const vector<int>& b) { assert(H == (int)b.size()); for (int i = 0; i < H; i++) A[i][W] = b[i]; int rank = gauss_jordan(true); for (int i = rank; i < H; i++) { if (A[i][W]) return {-1, vector<int>{}}; } vector<int> res(W, 0); for (int i = 0; i < rank; i++) res[i] = A[i][W]; return {rank, res}; } //N次正方行列について行列式を解く int Determinant(int N){ assert(0 <= N && N <= H && N <= W); return (N == gauss_jordan() ); } }; int main(){ INT(h,w); vector<string> A(h); in(A); INT(m); vector<pair<int,int>> b(m); rep(i,m){ in(b[i].first,b[i].second); b[i].second--; } Weighted_dsu uf1(h+w),uf2(h+w); bool f1 = true, f2 = true; for(int y=0;y<h;y++){ for(int x=0;x<w;x++){ if((y+x)&1){ if(!uf1.merge(y,x+h,A[y][x]^'#'?1:0))f1 = false; if(!uf2.merge(y,x+h,A[y][x]^'#'?0:1))f2 = false; }else{ if(!uf1.merge(y,x+h,A[y][x]^'#'?0:1))f1 = false; if(!uf2.merge(y,x+h,A[y][x]^'#'?1:0))f2 = false; } } } if(!f1 && !f2){ out("No"); return 0; } BitMatrix<400> E(h+w),F(h+w),G(h+w),H(h+w); for(int i=0;i<m;i++){ if(b[i].first==1){ for(int y=0;y<b[i].second;y++){ E[y][i]=F[y][i]=G[y][i]=H[y][i]=1; } }else{ for(int x=0;x<b[i].second;x++){ E[x+h][i]=F[x+h][i]=G[x+h][i]=H[x+h][i]=1; } } } if(f1){ vector<int> c(h+w); rep(i,h+w)c[i]=uf1.diff(0,i); if(E.linear_equation(c).first!=-1){ out("Yes"); return 0; } rep(i,h+w)c[i]^=1; if(F.linear_equation(c).first!=-1){ out("Yes"); return 0; } } if(f2){ vector<int> c(h+w); rep(i,h+w)c[i]=uf2.diff(0,i); if(G.linear_equation(c).first!=-1){ out("Yes"); return 0; } rep(i,h+w)c[i]^=1; if(H.linear_equation(c).first!=-1){ out("Yes"); return 0; } } out("No"); }