結果
問題 | No.187 中華風 (Hard) |
ユーザー | snuke |
提出日時 | 2018-06-09 03:01:44 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 275 ms / 3,000 ms |
コード長 | 3,428 bytes |
コンパイル時間 | 1,697 ms |
コンパイル使用メモリ | 173,832 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-30 12:21:41 |
合計ジャッジ時間 | 6,087 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 3 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 206 ms
6,940 KB |
testcase_03 | AC | 199 ms
6,944 KB |
testcase_04 | AC | 271 ms
6,944 KB |
testcase_05 | AC | 274 ms
6,944 KB |
testcase_06 | AC | 273 ms
6,940 KB |
testcase_07 | AC | 272 ms
6,940 KB |
testcase_08 | AC | 196 ms
6,944 KB |
testcase_09 | AC | 193 ms
6,944 KB |
testcase_10 | AC | 194 ms
6,940 KB |
testcase_11 | AC | 274 ms
6,940 KB |
testcase_12 | AC | 275 ms
6,940 KB |
testcase_13 | AC | 53 ms
6,944 KB |
testcase_14 | AC | 53 ms
6,944 KB |
testcase_15 | AC | 199 ms
6,940 KB |
testcase_16 | AC | 204 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 209 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | AC | 275 ms
6,944 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> #define fi first #define se second #define rep(i,n) for(int i = 0; i < (n); ++i) #define rrep(i,n) for(int i = 1; i <= (n); ++i) #define drep(i,n) for(int i = (n)-1; i >= 0; --i) #define srep(i,s,t) for (int i = s; i < t; ++i) #define rng(a) a.begin(),a.end() #define maxs(x,y) (x = max(x,y)) #define mins(x,y) (x = min(x,y)) #define limit(x,l,r) max(l,min(x,r)) #define lims(x,l,r) (x = max(l,min(x,r))) #define isin(x,l,r) ((l) <= (x) && (x) < (r)) #define pb push_back #define sz(x) (int)(x).size() #define pcnt __builtin_popcountll #define uni(x) x.erase(unique(rng(x)),x.end()) #define snuke srand((unsigned)clock()+(unsigned)time(NULL)); #define show(x) cout<<#x<<" = "<<x<<endl; #define PQ(T) priority_queue<T,v(T),greater<T> > #define bn(x) ((1<<x)-1) #define dup(x,y) (((x)+(y)-1)/(y)) #define newline puts("") #define v(T) vector<T> #define vv(T) v(v(T)) using namespace std; typedef long long int ll; typedef unsigned uint; typedef unsigned long long ull; typedef pair<int,int> P; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<P> vp; inline int in() { int x; scanf("%d",&x); return x;} template<typename T>inline istream& operator>>(istream&i,v(T)&v) {rep(j,sz(v))i>>v[j];return i;} template<typename T>string join(const v(T)&v) {stringstream s;rep(i,sz(v))s<<' '<<v[i];return s.str().substr(1);} template<typename T>inline ostream& operator<<(ostream&o,const v(T)&v) {if(sz(v))o<<join(v);return o;} template<typename T1,typename T2>inline istream& operator>>(istream&i,pair<T1,T2>&v) {return i>>v.fi>>v.se;} template<typename T1,typename T2>inline ostream& operator<<(ostream&o,const pair<T1,T2>&v) {return o<<v.fi<<","<<v.se;} template<typename T>inline ll suma(const v(T)& a) { ll res(0); for (auto&& x : a) res += x; return res;} const double eps = 1e-10; const ll LINF = 1001002003004005006ll; const int INF = 1001001001; #define dame { puts("-1"); return 0;} #define yn {puts("YES");}else{puts("NO");} const int MX = 200005; const int mod = 1000000007; #define bsf __builtin_ctzll ll gcd(ll a, ll b) { // a = abs(a); b = abs(b); if (!a || !b) return a|b; int t = bsf(a|b); a >>= bsf(a); do { b >>= bsf(b); if (a > b) swap(a, b); b -= a;} while (b); return a << t; } // ax+by = gcd(a,b) ll extgcd(ll a, ll b, ll& x, ll& y) { for (ll u = y = 1, v = x = 0; a;) { ll q = b / a; swap(x -= q * u, u); swap(y -= q * v, v); swap(b -= q * a, a); } return b; } // inline int inv(int a, int p) { ll x, y; extgcd(a,p,x,y); return (x%p+p)%p; } int main() { int n; scanf("%d",&n); vi r(n), p(n); rep(i,n) scanf("%d%d",&r[i],&p[i]); rep(i,n) { rep(j,i) { int g = gcd(p[i],p[j]); if (r[i]%g != r[j]%g) dame; p[i] /= g; p[j] /= g; int gi = gcd(p[i],g); int gj = g/gi; while (g = gcd(gi,gj), g != 1) { gi *= g; gj /= g; } p[i] *= gi; p[j] *= gj; r[i] %= p[i]; r[j] %= p[j]; } } vl x; rep(i,n) { ll a = r[i], c = 1; rep(j,i) { a -= x[j]*c%p[i]; if (a < 0) a += p[i]; c = c*p[j]%p[i]; } rep(j,i) a = a*inv(p[j],p[i])%p[i]; x.pb(a); // cerr<<r[i]<<" "<<p[i]<<" "<<a<<endl; } ll ans = 0, c = 1; rep(i,n) { (ans += x[i]*c) %= mod; c = c*p[i]%mod; } if (x == vl(n)) { ans = 1; rep(i,n) ans = ans*p[i]%mod; } cout<<ans<<endl; return 0; }