結果
問題 | No.803 Very Limited Xor Subset |
ユーザー |
|
提出日時 | 2021-10-25 21:24:17 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 4,902 bytes |
コンパイル時間 | 1,947 ms |
コンパイル使用メモリ | 176,152 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-03 19:20:37 |
合計ジャッジ時間 | 3,116 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 43 |
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_popcount(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__)))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> 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<<endl;}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;returnu;}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;}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};}};int main(){INT(n,m,x);BitMatrix<305> B(m+30);vector<int> a(n),b(m+30,0);in(a);rep(i,m){INT(t,l,r);l--;for(int j=l;j<r;j++)B[i][j]=1;b[i]=t;}rep(i,30){rep(j,n){B[m+i][j]=(a[j]>>i&1);}b[m+i]=(x>>i&1);}auto ans=B.linear_equation(b);if(ans.first==-1)out(0);else out(modpow(2,n-ans.first,MOD));}