結果
問題 | No.2273 一点乗除区間積 |
ユーザー |
|
提出日時 | 2023-04-14 23:14:27 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,277 bytes |
コンパイル時間 | 2,365 ms |
コンパイル使用メモリ | 217,972 KB |
最終ジャッジ日時 | 2025-02-12 08:03:58 |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
other | AC * 11 WA * 6 TLE * 8 |
ソースコード
#include<bits/stdc++.h>using namespace std;#pragma GCC optimize("Ofast")#define rep(i,n) for(ll i=0;i<n;i++)#define repl(i,l,r) for(ll i=(l);i<(r);i++)#define per(i,n) for(ll i=(n)-1;i>=0;i--)#define perl(i,r,l) for(ll i=r-1;i>=l;i--)#define fi first#define se second#define pb push_back#define ins insert#define pqueue(x) priority_queue<x,vector<x>,greater<x>>#define all(x) (x).begin(),(x).end()#define CST(x) cout<<fixed<<setprecision(x)#define vtpl(x,y,z) vector<tuple<x,y,z>>#define rev(x) reverse(x);using ll=long long;using vl=vector<ll>;using vvl=vector<vector<ll>>;using pl=pair<ll,ll>;using vpl=vector<pl>;using vvpl=vector<vpl>;const ll MOD=1000000007;const ll MOD9=998244353;const int inf=1e9+10;const ll INF=4e18;const ll dy[9]={0,1,-1,0,1,1,-1,-1,0};const ll dx[9]={1,0,0,-1,1,-1,1,-1,0};template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b;return true;}return false;}template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b;return true;}return false;}//0-indexed,2冪のセグメントツリーtemplate <class T>struct SegTree {private:int n;// 葉の数vector<T> data;// データを格納するvectorT def; // 初期値かつ単位元function<T(T, T)> operation; // 区間クエリで使う処理function<T(T, T)> change;// 点更新で使う処理T find(int a, int b) {T val_left = def, val_right = def;for (a += (n - 1), b += (n - 1); a < b; a >>= 1, b >>= 1){if ((a & 1) == 0){val_left = operation(val_left, data[a]);}if ((b & 1) == 0){val_right = operation(data[--b],val_right);}}return operation(val_left, val_right);}public:// _n:必要サイズ, _def:初期値かつ単位元, _operation:クエリ関数,// _change:更新関数SegTree(size_t _n, T _def, function<T(T, T)> _operation,function<T(T, T)> _change=[](T a,T b){return b;}): def(_def), operation(_operation), change(_change) {n = 1;while (n < _n) {n *= 2;}data = vector<T>(2 * n - 1, def);}void set(int i, T x) { data[i + n - 1] = x; }void build() {for (int k=n-2;k>=0;k--) data[k] = operation(data[2*k+1],data[2*k+2]);}// 場所i(0-indexed)の値をxで更新void update(int i, T x) {i += n - 1;data[i] = change(data[i], x);while (i > 0) {i = (i - 1) / 2;data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]);}}T all_prod(){return data[0];}// [a, b)の区間クエリを実行T query(int a, int b) {//return _query(a, b, 0, 0, n);return find(a,b);}// 添字でアクセスT operator[](int i) {return data[i + n - 1];}};map<ll,ll> factor(long long n) {map<ll,ll> ret;ll t=n;for (long long i = 2; i * i <= n; i++) {while (t % i == 0) {ret[i]++;t/=i;}}if(t!=1)ret[t]++;return ret;}ll modpow(ll a,ll n, ll mod) {if(n==0)return 1;a%=mod;if(a==0)return 0;ll res = 1;while (n > 0) {if (n & 1) res = res * a % mod;a = a * a % mod;n >>= 1;}return res;}int main(){ios::sync_with_stdio(false);std::cin.tie(nullptr);ll n,b,q;cin >> n >>b >> q;auto hoge=factor(b);vl facs,num;for(auto p:hoge)facs.emplace_back(p.first),num.emplace_back(p.second);vector<SegTree<ll>> segs;SegTree<ll> rem(n,1,[&](ll a,ll c){return a*c%b;},[&](ll a,ll c){return a*c%b;});SegTree<ll> hog(n,0,[](ll a,ll b){return a+b;},[](ll a,ll b){return a+b;});rep(i,facs.size())segs.push_back(hog);rep(i,n){ll a;cin >> a;rep(j,facs.size()){ll f=0;while(a%facs[j]==0){a/=facs[j];f++;}segs[j].update(i,f);}a%=b;rem.update(i,a);}while(q--){ll j,m;cin >> j >> m;bool mult=true;rep(k,facs.size()){if(segs[k][j]<num[k])mult=false;}if(m!=b||mult==false){rep(k,facs.size()){ll f=0;while(m%facs[k]==0){m/=facs[k];f++;}segs[k].update(j,f);}m%=b;rem.update(j,m);}else{rep(k,facs.size()){segs[k].update(j,-num[k]);}}ll l,r;cin >> l >> r;r++;mult=true;rep(k,facs.size()){if(segs[k][j]<num[k])mult=false;}if(mult){cout << 0 << endl;}else {ll ans=rem.query(l,r);//cout << ans << endl;rep(k,facs.size()){ll e=segs[k].query(l,r);//cout << e << endl;ans=ans*modpow(facs[k],e,b)%b;//cout << facs[k] << endl;//cout << ans <<" " << modpow(facs[k],e,b) <<" " << b << endl;}cout << ans << endl;}}}