結果
問題 | No.1683 Robot Guidance |
ユーザー | PCTprobability |
提出日時 | 2021-09-17 21:58:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 216 ms / 2,000 ms |
コード長 | 5,853 bytes |
コンパイル時間 | 6,269 ms |
コンパイル使用メモリ | 302,800 KB |
実行使用メモリ | 73,984 KB |
最終ジャッジ日時 | 2024-06-29 20:24:31 |
合計ジャッジ時間 | 15,861 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 183 ms
73,856 KB |
testcase_01 | AC | 183 ms
73,856 KB |
testcase_02 | AC | 186 ms
73,856 KB |
testcase_03 | AC | 186 ms
73,984 KB |
testcase_04 | AC | 187 ms
73,856 KB |
testcase_05 | AC | 194 ms
73,728 KB |
testcase_06 | AC | 192 ms
73,856 KB |
testcase_07 | AC | 189 ms
73,728 KB |
testcase_08 | AC | 206 ms
73,856 KB |
testcase_09 | AC | 194 ms
73,728 KB |
testcase_10 | AC | 197 ms
73,856 KB |
testcase_11 | AC | 200 ms
73,728 KB |
testcase_12 | AC | 208 ms
73,728 KB |
testcase_13 | AC | 189 ms
73,856 KB |
testcase_14 | AC | 207 ms
73,856 KB |
testcase_15 | AC | 205 ms
73,856 KB |
testcase_16 | AC | 196 ms
73,856 KB |
testcase_17 | AC | 195 ms
73,728 KB |
testcase_18 | AC | 197 ms
73,856 KB |
testcase_19 | AC | 196 ms
73,728 KB |
testcase_20 | AC | 196 ms
73,856 KB |
testcase_21 | AC | 196 ms
73,728 KB |
testcase_22 | AC | 192 ms
73,856 KB |
testcase_23 | AC | 199 ms
73,728 KB |
testcase_24 | AC | 216 ms
73,856 KB |
testcase_25 | AC | 208 ms
73,856 KB |
testcase_26 | AC | 210 ms
73,856 KB |
testcase_27 | AC | 206 ms
73,856 KB |
testcase_28 | AC | 204 ms
73,856 KB |
testcase_29 | AC | 198 ms
73,856 KB |
testcase_30 | AC | 203 ms
73,856 KB |
testcase_31 | AC | 203 ms
73,728 KB |
testcase_32 | AC | 195 ms
73,856 KB |
testcase_33 | AC | 197 ms
73,728 KB |
testcase_34 | AC | 195 ms
73,856 KB |
testcase_35 | AC | 204 ms
73,856 KB |
testcase_36 | AC | 209 ms
73,728 KB |
testcase_37 | AC | 201 ms
73,856 KB |
testcase_38 | AC | 203 ms
73,728 KB |
testcase_39 | AC | 212 ms
73,728 KB |
testcase_40 | AC | 205 ms
73,856 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #pragma GCC optimize("Ofast") #include <bits/stdc++.h> #include <unistd.h> using namespace std; #if __has_include(<atcoder/all>) #include <atcoder/all> using namespace atcoder; #endif using ll = long long; using ld = long double; using ull = unsigned long long; #define endl "\n" typedef pair<int, int> Pii; #define REP3(i, m, n) for (int i = (m); (i) < int(n); ++ (i)) #define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++) #define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++) #define ALL(x) begin(x), end(x) #define all(s) (s).begin(),(s).end() //#define rep2(i, m, n) for (int i = (m); i < (n); ++i) //#define rep(i, n) rep2(i, 0, n) #define PB push_back #define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i) #define drep(i, n) drep2(i, n, 0) #define rever(vec) reverse(vec.begin(), vec.end()) #define sor(vec) sort(vec.begin(), vec.end()) //#define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++) #define fi first #define se second #define pb push_back #define P pair<ll,ll> #define NP next_permutation //const ll mod = 1000000009; //const ll mod = 998244353; const ll mod = 1000000007; const ll inf = 4100000000000000000ll; const ld eps = ld(0.00000000001); //static const long double pi = 3.141592653589793; template<class T>void vcin(vector<T> &n){for(int i=0;i<int(n.size());i++) cin>>n[i];} template<class T,class K>void vcin(vector<T> &n,vector<K> &m){for(int i=0;i<int(n.size());i++) cin>>n[i]>>m[i];} template<class T>void vcout(vector<T> &n){for(int i=0;i<int(n.size());i++){cout<<n[i]<<" ";}cout<<endl;} template<class T>void vcin(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cin>>n[i][j];}}} template<class T>void vcout(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cout<<n[i][j]<<" ";}cout<<endl;}cout<<endl;} void yes(bool a){cout<<(a?"yes":"no")<<endl;} void YES(bool a){cout<<(a?"YES":"NO")<<endl;} void Yes(bool a){cout<<(a?"Yes":"No")<<endl;} void possible(bool a){ cout<<(a?"possible":"impossible")<<endl; } void Possible(bool a){ cout<<(a?"Possible":"Impossible")<<endl; } void POSSIBLE(bool a){ cout<<(a?"POSSIBLE":"IMPOSSIBLE")<<endl; } template<class T>auto min(const T& a){ return *min_element(all(a)); } template<class T>auto max(const T& a){ return *max_element(all(a)); } template<class T,class F>void print(pair<T,F> a){cout<<a.fi<<" "<<a.se<<endl;} 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<class T> void ifmin(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}} template<class T> void ifmax(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}} template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} ll fastgcd(ll u,ll v){ll shl=0;while(u&&v&&u!=v){bool eu=!(u&1);bool ev=!(v&1);if(eu&&ev){++shl;u>>=1;v>>=1;}else if(eu&&!ev){u>>=1;}else if(!eu&&ev){v>>=1;}else if(u>=v){u=(u-v)>>1;}else{ll tmp=u;u=(v-u)>>1;v=tmp;}}return !u?v<<shl:u<<shl;} ll modPow(ll a, ll n, ll mod) { if(mod==1) return 0;ll ret = 1; ll p = a % mod; while (n) { if (n & 1) ret = ret * p % mod; p = p * p % mod; n >>= 1; } return ret; } vector<ll> divisor(ll x){ vector<ll> ans; for(ll i = 1; i * i <= x; i++){ if(x % i == 0) {ans.push_back(i); if(i*i!=x){ ans.push_back(x / ans[i]);}}}sor(ans); return ans; } ll pop(ll x){return __builtin_popcountll(x);} ll poplong(ll x){ll y=-1;while(x){x/=2;y++;}return y;} template<class T> struct Sum{ vector<T> data; Sum(const vector<T>& v):data(v.size()+1){ for(ll i=0;i<v.size();i++) data[i+1]=data[i]+v[i]; } T get(ll l,ll r) const { return data[r]-data[l]; } }; template<class T> struct Sum2{ vector<vector<T>> data; Sum2(const vector<vector<T>> &v):data(v.size()+1,vector<T>(v[0].size()+1)){ for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]=data[i][j+1]+v[i][j]; for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]+=data[i+1][j]; } T get(ll x1,ll y1,ll x2,ll y2) const { return data[x2][y2]+data[x1][y1]-data[x1][y2]-data[x2][y1]; } }; void cincout(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); cout<< fixed << setprecision(10); } constexpr ll MAX = 3000000; ll fac[MAX],finv[MAX],inv[MAX]; void COMinit(){ fac[0]=fac[1]=1; finv[0]=finv[1]=1; inv[1]=1; for(int i=2;i<MAX;i++){ fac[i]=fac[i-1]*i%mod; inv[i]=mod-inv[mod%i]*(mod/i)%mod; finv[i]=finv[i-1]*inv[i]%mod; } } ll binom(ll n,ll k){ if(k==-1&&n==-1) return 1; if(n<k) return 0; if(n<0||k<0) return 0; return fac[n]*(finv[k]*finv[n-k]%mod)%mod; } ll HOM(ll n,ll k){ if(n+k-1>=n-1&&n-1>=0){ return binom(n+k-1,n-1); } else{ return 0; } } using mint = modint1000000007; int main() { cincout(); COMinit(); ll a,b,x,y; cin>>a>>b>>x>>y; mint ans=0; ll xp=0,xm=0,yp=0,ym=0; for(int i=0;i<=b;i++){ if(i%4==0) xp++; if(i%4==1) yp++; if(i%4==2) xm++; if(i%4==3) ym++; } for(int i=0;i<=a;i++){ ll p=i,q=a-i; mint tmp=1; ll u=(x+p)/2; ll v=(p-x)/2; if((x+p)%2!=0){ continue; } if((y+q)%2!=0){ continue; } // cout<<xp<<" "<<xm<<" "<<u<<" "<<v<<endl; tmp*=binom(xp+u-1,xp-1)*binom(xm+v-1,xm-1); // cout<<fac[1]<<" "<<finv[0]<<" "<<finv[1]<<endl; // cout<<xp+u-1<<" "<<xp-1<<" "<<binom(1,0)<<" "<<binom(xp+u-1,xp-1)<<" "<<binom(xm+v-1,xm-1)<<endl; // cout<<tmp.val()<<endl; u=(y+q)/2; v=(q-y)/2; // cout<<yp<<" "<<ym<<" "<<u<<" "<<v<<endl; tmp*=binom(yp+u-1,yp-1)*binom(ym+v-1,ym-1); // cout<<tmp.val()<<endl; ans+=tmp; } cout<<ans.val()<<endl; }