結果
問題 | No.187 中華風 (Hard) |
ユーザー | tanimani364 |
提出日時 | 2022-03-09 13:50:51 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,673 bytes |
コンパイル時間 | 6,543 ms |
コンパイル使用メモリ | 373,084 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-13 13:09:41 |
合計ジャッジ時間 | 8,460 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | AC | 115 ms
6,944 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 101 ms
6,940 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 54 ms
6,944 KB |
testcase_14 | AC | 47 ms
6,944 KB |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | WA | - |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> #include <boost/multiprecision/cpp_int.hpp> //#include <atcoder/all> using namespace std; #define rep(i, a) for (int i = (int)0; i < (int)a; ++i) #define repl(i, a) for (long long i = (long long)0; i < (long long)a; ++i) #define rrep(i, a) for (int i = (int)a; i > -1; --i) #define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i) #define REPL(i, a, b) for (long long i = (long long)a; i < (long long)b; ++i) #define RREP(i, a, b) for (int i = (int)a; i > b; --i) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define popcount __builtin_popcount #define popcountll __builtin_popcountll #define fi first #define se second using ll = long long; constexpr ll mod = 1e9 + 7; constexpr ll mod_998244353 = 998244353; constexpr ll INF = 1LL << 60; #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //using lll = boost::multiprecision::cpp_int; 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; } ll mypow(ll x, ll n, const ll &p = -1) { // x^nをmodで割った余り if (p != -1) { x = (x % p + p) % p; } ll ret = 1; while (n > 0) { if (n & 1) { if (p != -1) ret = (ret * x) % p; else ret *= x; } if (p != -1) x = (x * x) % p; else x *= x; n >>= 1; } return ret; } template <typename T> struct myrand { random_device seed; mt19937 mt; myrand() : mt(seed()) {} T operator()(T a, T b) { //[a,b) uniform_int_distribution<T> dist(a, b - 1); return dist(mt); } }; //using namespace atcoder; //------------------------ //------------------------ //------------------------ //------------------------ //------------------------ template<typename T=ll> T extgcd(T a,T b,T &x,T &y){ T d=a; if(b==0){ x=1,y=0; }else{ d=extgcd(b,a%b,y,x); y-=a/b*x; } return d; } template<typename T=ll> T modinv(T a,T m){ T x,y; if(extgcd(a,m,x,y)==1){ return (x%m+m)%m; } return -1;//no inv } template<typename T=ll> T preGarner(vector<T> &r,vector<T> &m,T MOD=-1){ assert(r.size()==m.size()); T LCM=1; int n=r.size(); for(int i=0;i<n;++i){ for(int j=i+1;j<n;++j){ T g=gcd<T,T>(m[i],m[j]); if((r[i]-r[j])%g!=0)return -1; m[i]/=g; m[j]/=g; T gi=gcd<ll,ll>(m[i],g),gj=g/gi; while(g!=1){ g=gcd(gi,gj); gi*=g,gj/=g; } m[i]*=gi,m[j]*=gj; r[i]%=m[i],r[j]%=m[j]; } } for(int i=0;i<n;++i){ LCM*=m[i]; if(MOD!=-1){ LCM%=MOD; } } return LCM; } template<typename T=ll> pair<T,T> CRT_Garner(vector<T> &r,vector<T> &m,T MOD=-1){ assert(r.size()==m.size()); T LCM=preGarner(r,m,MOD); if(LCM==-1){ return make_pair(0,0); } T prod_m=1,prod_t=0; int n=r.size(); for(int i=0;i<n;++i){ T t_k=(r[i]-prod_t)*modinv(prod_m,m[i]); t_k=(t_k%m[i]+m[i])%m[i]; //cout<<t_k<<"\n"; prod_t+=t_k*prod_m; prod_m*=m[i]; for(int j=i+1;j<n;++j){ //prod_t%=m[j]; //prod_m%=m[j]; } if(MOD!=-1){ prod_t%=MOD; prod_m%=MOD; } } if(MOD!=-1){ prod_t=(prod_t%MOD+MOD)%MOD; } return make_pair(prod_t,LCM); } void solve() { int n; cin>>n; vector<ll>r(n),m(n); rep(i,n)cin>>r[i]>>m[i]; auto [R,M]=CRT_Garner(r,m,mod); cout<<(R!=0?R:-1)<<"\n"; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(15); solve(); return 0; }