結果
問題 | No.186 中華風 (Easy) |
ユーザー |
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提出日時 | 2015-04-20 00:03:53 |
言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 3,975 bytes |
コンパイル時間 | 1,593 ms |
コンパイル使用メモリ | 177,052 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-19 18:22:58 |
合計ジャッジ時間 | 2,428 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 23 |
ソースコード
#include <bits/stdc++.h>using namespace std;#define REP(i,n) for(int i=0;i<(int)(n);++i)#define REPR(i,n) for (int i=(int)(n)-1;i>=0;--i)#define FOR(i,c) for(__typeof((c).begin())i=(c).begin();i!=(c).end();++i)#define ALL(c) (c).begin(), (c).end()#define valid(y,x,h,w) (0<=y&&y<h&&0<=x&&x<w)#define tpl(...) make_tuple(__VA_ARGS__)const int INF = 0x3f3f3f3f;const double EPS = 1e-8;const double PI = acos(-1);const int dy[] = {-1,0,1,0};const int dx[] = {0,1,0,-1};typedef long long ll;typedef pair<int,int> pii;template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }template<typename Ch,typename Tr,typename C,typename=decltype(begin(C()))>basic_ostream<Ch,Tr>& operator<<(basic_ostream<Ch,Tr>&os,const C& c){os<<'[';for(auto i=begin(c);i!=end(c);++i)os<<(i==begin(c)?"":" ")<<*i;return os<<']';}template<class S,class T>ostream&operator<<(ostream &o,const pair<S,T>&t){return o<<'('<<t.first<<','<<t.second<<')';}template<int N,class Tp>void output(ostream&,const Tp&){}template<int N,class Tp,class,class ...Ts>void output(ostream &o,const Tp&t){if(N)o<<',';o<<get<N>(t);output<N+1,Tp,Ts...>(o,t);}template<class ...Ts>ostream&operator<<(ostream&o,const tuple<Ts...>&t){o<<'(';output<0,tuple<Ts...>,Ts...>(o,t);return o<<')';}template<class T>void output(T t,char z=10){if(t<0)t=-t,putchar(45);int c[20];int k=0;while(t)c[k++]=t%10,t/=10;for(k||(c[k++]=0);k;)putchar(c[--k]^48);putchar(z);}template<class T>void outputs(T t){output(t);}template<class S,class ...T>void outputs(S a,T...t){output(a,32);outputs(t...);}template<class T>void output(T *a,int n){REP(i,n)cout<<a[i]<<(i!=n-1?',':'\n');}template<class T>void output(T *a,int n,int m){REP(i,n)output(a[i],m);}template<class T>bool input(T &t){int n=1,c;for(t=0;!isdigit(c=getchar())&&~c&&c-45;);if(!~c)return 0;for(c-45&&(n=0,t=c^48);isdigit(c=getchar());)t=10*t+c-48;t=n?-t:t;return 1;}template<class S,class ...T>bool input(S&a,T&...t){input(a);return input(t...);}template<class T>bool inputs(T *a, int n) { REP(i,n) if(!input(a[i])) return 0; return 1;}ll mulmod(ll a, ll n, ll m) {ll res = 0;while(n>=1) {if (n % 2 == 1)res = (res + a) % m;a = a*2%m;n >>= 1;}return res;}ll extgcd(ll a, ll b, ll &x, ll &y) {ll g = a;x = 1; y = 0;if (b) {g = extgcd(b, a%b, y, x);y -= (a/b) * x;}return g;}ll gcd(ll a, ll b) {return b?gcd(b,a%b):a;}ll ChineseRemainderTheorem(const vector<ll> &B, const vector<ll> &M) {ll all = 1;FOR(it, M) all*=*it;ll res = 0;REP(i,B.size()) {ll x,y;extgcd(M[i], all/M[i], x, y);y = (y+all)%all;res = (res + mulmod(mulmod(B[i],y,all),(all/M[i]),all) + all) % all;}return res;}map<ll, int> factorize(ll n) { // O(√n)map<ll, int> res;for (ll i=2; i*i<=n; ++i) {int cnt = 0;while (n%i==0) {n /= i;cnt++;}if (cnt) {res[i] = cnt;}}if (n!=1) res[n] = 1;return res;}ll lcm(ll a, ll b) {return a/gcd(a,b)*b;}ll lcm(vector<ll> v) {ll res = 1;FOR(it, v)res = lcm(res, *it);return res;}int main() {while(1) {vector<ll> x(3),y(3);bool eof = 0;REP(i,3) {if (!(cin>>x[i]>>y[i])) eof = 1;}if (eof) break;map<int,pair<ll,ll> > mp;REP(i,3) {map<ll,int> pf = factorize(y[i]);for (auto p : pf) {ll t = 1;REP(i,p.second) t *= p.first;if (mp[p.first].first < t) {mp[p.first] = make_pair(t, x[i] % t);}}}vector<ll> B,M;for (auto p : mp) {B.push_back(p.second.second);M.push_back(p.second.first);}ll res = ChineseRemainderTheorem(B,M);if (res == 0) res = lcm(y);bool ok = 1;REP(i,3) {ok &= (res % y[i] == x[i]);}if (ok) cout << res << endl;else cout << -1 << endl;}}