Submission #188129
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define REP(i,n) for(int i=0;i<(int)(n);++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); 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 (a>b) { a=b; return 1; } return 0; } template<class T>ostream&operator<<(ostream &o,const vector<T>&t){o<<'[';FOR(i,t){if(i!=t.begin())o<<',';o<<*i;}return o<<']';} 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 out(ostream&,const Tp&){} template<int N,class Tp,class,class ...Ts>void out(ostream &o,const Tp&t){if(N)o<<',';o<<get<N>(t);out<N+1,Tp,Ts...>(o,t);} template<class ...Ts>ostream&operator<<(ostream&o,const tuple<Ts...>&t){o<<'(';out<0,tuple<Ts...>,Ts...>(o,t);return o<<')';} template<class T>void output(T *a,int n){REP(i,n){if(i)cout<<',';cout<<a[i];}cout<<endl;} template<class T>void output(T *a,int n,int m){REP(i,n)output(a[i],m);} template<class T>void output(T t){if(t<0)t=-t,putchar(45);static int c[20]; int k=0;while(t)c[k++]=t%10,t/=10;for(k||(c[k++]=0);k;putchar(c[--k]^48));} template<class S,class ...T>void output(S a,T...t){output(a);putchar(' ');output(t...);} 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...);} #define double long double double func(int n, int a) { double res = 1; REP(i,n) { res *= n-i; res /= 2; if (a-i>0) res /= a-i; if (n-a-i>0) res /= n-a-i; } return res; } double solve(int n, int dx) { // a-b = dx // a+b = n // a = (dx+n)/2; if (dx>n) return 0.0; if ((dx+n)&1) return 0.0; int a = (dx+n)/2; return func(n,a); } int main() { ll n,d,x,y; while(cin>>n>>d>>x>>y) { if (x%d!=0 || y%d!=0 || abs(x)/d+abs(y)/d > n) { cout << 0 << endl; continue; } int dx = abs(x)/d; int dy = abs(y)/d; // cout << dx << " " << dy << endl; double ans = 0; REP(i,n+1) { int j = n-i; ans += solve(i,dx) * solve(j,dy) * func(n,i); // if (solve(i,dx) * solve(j,dy) == 0) { // cout << i << " " << dx << " " << dy << endl; // cout << solve(i,dx) << " " << solve(j,dy) << " " << func(n,i) << endl; // } } printf("%.12Lf\n", ans); } }
Submission Info
Submission Time | |
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Task | D - 大ジャンプ |
User | sune2 |
Language | C++11 (GCC 4.8.1) |
Score | 101 |
Code Size | 2838 Byte |
Status | AC |
Exec Time | 43 ms |
Memory | 920 KB |
Judge Result
Set Name | part1 | part2 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 90 / 90 | 10 / 10 | 1 / 1 | ||||||
Status |
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Set Name | Test Cases |
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part1 | test_1_151403858_0_0AB.txt, test_1_1_0_1AB.txt, test_1_1_2_0AB.txt, test_1_200416616_-430405070_-79858930AB.txt, test_1_320861287_0_0AB.txt, test_1_445441131_0_0AB.txt, test_2_91743015_0_183486030AB.txt, test_3_165357536_496072608_0AB.txt, test_3_357154050_-106436394_768502001AB.txt, test_3_721501125_-568833455_353553641AB.txt, test_3_893846474_0_0AB.txt, test_4_291388018_-291388018_0AB.txt, test_5_318547875_955643625_-637095750AB.txt, test_5_704387671_-704387671_0AB.txt, test_5_82323965_639854915_-688317394AB.txt, test_6_187422602_374845204_-374845204AB.txt, test_6_346164451_0_0AB.txt, test_6_99058019_194123640_-837769837AB.txt, test_7_166330212_166330212_-332660424AB.txt, test_7_89698746_448493730_-179397492AB.txt, test_8_10000000_-40000000_-40000000AB.txt, test_8_10000000_0_80000000AB.txt, test_8_10000000_80000000_0AB.txt |
part2 | test_10_227248639_454497278_0B.txt, test_11_692637325_-181424149_-938839075B.txt, test_13_260236679_-780710037_-520473358B.txt, test_13_269280357_807841071_269280357B.txt, test_13_96859935_0_-581159610B.txt, test_16_40374395_-40374395_-565241530B.txt, test_1_151403858_0_0AB.txt, test_1_1_0_1AB.txt, test_1_1_2_0AB.txt, test_1_200416616_-430405070_-79858930AB.txt, test_1_320861287_0_0AB.txt, test_1_445441131_0_0AB.txt, test_21_304856339_609712678_914569017B.txt, test_26_214390232_-857560928_428780464B.txt, test_2_91743015_0_183486030AB.txt, test_30_10000000_-300000000_0B.txt, test_30_10000000_0_300000000B.txt, test_30_10000000_150000000_-150000000B.txt, test_30_54228128_0_813421920B.txt, test_3_165357536_496072608_0AB.txt, test_3_357154050_-106436394_768502001AB.txt, test_3_721501125_-568833455_353553641AB.txt, test_3_893846474_0_0AB.txt, test_4_291388018_-291388018_0AB.txt, test_5_318547875_955643625_-637095750AB.txt, test_5_704387671_-704387671_0AB.txt, test_5_82323965_639854915_-688317394AB.txt, test_6_187422602_374845204_-374845204AB.txt, test_6_346164451_0_0AB.txt, test_6_99058019_194123640_-837769837AB.txt, test_7_166330212_166330212_-332660424AB.txt, test_7_89698746_448493730_-179397492AB.txt, test_8_10000000_-40000000_-40000000AB.txt, test_8_10000000_0_80000000AB.txt, test_8_10000000_80000000_0AB.txt, test_9_283198156_849594468_849594468B.txt |
All | test_1000_1000000_-500000000_500000000.txt, test_1000_1000000_0_-1000000000.txt, test_1000_1000000_1000000000_0.txt, test_1000_150305_97998860_-32315575.txt, test_1000_1_0_0.txt, test_1000_1_2_0.txt, test_1000_1_2_2.txt, test_1000_3308678_-800700076_-350719868.txt, test_1000_3608549_811923525_689232859.txt, test_1000_3728577_-145414503_-969430020.txt, test_1000_537976_11297496_224335992.txt, test_10_227248639_454497278_0B.txt, test_11_692637325_-181424149_-938839075B.txt, test_130_95365311_-667557177_-286095933.txt, test_131_18204705_-145637640_0.txt, test_13_260236679_-780710037_-520473358B.txt, test_13_269280357_807841071_269280357B.txt, test_13_96859935_0_-581159610B.txt, test_16_40374395_-40374395_-565241530B.txt, test_1_151403858_0_0AB.txt, test_1_1_0_1AB.txt, test_1_1_2_0AB.txt, test_1_200416616_-430405070_-79858930AB.txt, test_1_320861287_0_0AB.txt, test_1_445441131_0_0AB.txt, test_210_28974130_0_260767170.txt, test_217_321156_24407856_22480920.txt, test_21_304856339_609712678_914569017B.txt, test_26_214390232_-857560928_428780464B.txt, test_289_421462830_-487186374_-417635361.txt, test_2_91743015_0_183486030AB.txt, test_30_10000000_-300000000_0B.txt, test_30_10000000_0_300000000B.txt, test_30_10000000_150000000_-150000000B.txt, test_30_54228128_0_813421920B.txt, test_339_4475128_957677392_281933064.txt, test_3_165357536_496072608_0AB.txt, test_3_357154050_-106436394_768502001AB.txt, test_3_721501125_-568833455_353553641AB.txt, test_3_893846474_0_0AB.txt, test_480_402960_-131767920_-34654560.txt, test_4_291388018_-291388018_0AB.txt, test_507_3516183_-879045750_-253165176.txt, test_515_8606048_-25818144_8606048.txt, test_522_2286376_-230923976_-18291008.txt, test_5_318547875_955643625_-637095750AB.txt, test_5_704387671_-704387671_0AB.txt, test_5_82323965_639854915_-688317394AB.txt, test_676_198114948_0_792459792.txt, test_688_151937211_-286341114_10198771.txt, test_6_187422602_374845204_-374845204AB.txt, test_6_346164451_0_0AB.txt, test_6_99058019_194123640_-837769837AB.txt, test_71_367604060_367604060_0.txt, test_752_120973200_0_-725839200.txt, test_772_881340073_0_0.txt, test_777_125719576_-499451637_822057459.txt, test_7_166330212_166330212_-332660424AB.txt, test_7_89698746_448493730_-179397492AB.txt, test_839_166155061_0_-332310122.txt, test_839_923157_923157_564972084.txt, test_849_415705_290993500_0.txt, test_873_418406_2928842_322172620.txt, test_8_10000000_-40000000_-40000000AB.txt, test_8_10000000_0_80000000AB.txt, test_8_10000000_80000000_0AB.txt, test_981_159373724_-637494896_-159373724.txt, test_9_283198156_849594468_849594468B.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 21 ms | 796 KB |
sample_02.txt | AC | 21 ms | 916 KB |
sample_03.txt | AC | 21 ms | 792 KB |
test_1000_1000000_-500000000_500000000.txt | AC | 41 ms | 788 KB |
test_1000_1000000_0_-1000000000.txt | AC | 37 ms | 784 KB |
test_1000_1000000_1000000000_0.txt | AC | 36 ms | 804 KB |
test_1000_150305_97998860_-32315575.txt | AC | 42 ms | 864 KB |
test_1000_1_0_0.txt | AC | 42 ms | 796 KB |
test_1000_1_2_0.txt | AC | 42 ms | 796 KB |
test_1000_1_2_2.txt | AC | 42 ms | 796 KB |
test_1000_3308678_-800700076_-350719868.txt | AC | 42 ms | 908 KB |
test_1000_3608549_811923525_689232859.txt | AC | 42 ms | 812 KB |
test_1000_3728577_-145414503_-969430020.txt | AC | 42 ms | 792 KB |
test_1000_537976_11297496_224335992.txt | AC | 41 ms | 796 KB |
test_10_227248639_454497278_0B.txt | AC | 19 ms | 912 KB |
test_11_692637325_-181424149_-938839075B.txt | AC | 19 ms | 784 KB |
test_130_95365311_-667557177_-286095933.txt | AC | 22 ms | 796 KB |
test_131_18204705_-145637640_0.txt | AC | 22 ms | 916 KB |
test_13_260236679_-780710037_-520473358B.txt | AC | 23 ms | 792 KB |
test_13_269280357_807841071_269280357B.txt | AC | 21 ms | 796 KB |
test_13_96859935_0_-581159610B.txt | AC | 21 ms | 796 KB |
test_16_40374395_-40374395_-565241530B.txt | AC | 23 ms | 864 KB |
test_1_151403858_0_0AB.txt | AC | 22 ms | 796 KB |
test_1_1_0_1AB.txt | AC | 22 ms | 788 KB |
test_1_1_2_0AB.txt | AC | 20 ms | 792 KB |
test_1_200416616_-430405070_-79858930AB.txt | AC | 20 ms | 796 KB |
test_1_320861287_0_0AB.txt | AC | 21 ms | 792 KB |
test_1_445441131_0_0AB.txt | AC | 19 ms | 912 KB |
test_210_28974130_0_260767170.txt | AC | 23 ms | 804 KB |
test_217_321156_24407856_22480920.txt | AC | 22 ms | 796 KB |
test_21_304856339_609712678_914569017B.txt | AC | 22 ms | 720 KB |
test_26_214390232_-857560928_428780464B.txt | AC | 21 ms | 796 KB |
test_289_421462830_-487186374_-417635361.txt | AC | 21 ms | 916 KB |
test_2_91743015_0_183486030AB.txt | AC | 23 ms | 800 KB |
test_30_10000000_-300000000_0B.txt | AC | 21 ms | 796 KB |
test_30_10000000_0_300000000B.txt | AC | 21 ms | 792 KB |
test_30_10000000_150000000_-150000000B.txt | AC | 22 ms | 788 KB |
test_30_54228128_0_813421920B.txt | AC | 20 ms | 912 KB |
test_339_4475128_957677392_281933064.txt | AC | 23 ms | 888 KB |
test_3_165357536_496072608_0AB.txt | AC | 21 ms | 796 KB |
test_3_357154050_-106436394_768502001AB.txt | AC | 21 ms | 720 KB |
test_3_721501125_-568833455_353553641AB.txt | AC | 19 ms | 784 KB |
test_3_893846474_0_0AB.txt | AC | 22 ms | 796 KB |
test_480_402960_-131767920_-34654560.txt | AC | 26 ms | 804 KB |
test_4_291388018_-291388018_0AB.txt | AC | 22 ms | 796 KB |
test_507_3516183_-879045750_-253165176.txt | AC | 26 ms | 796 KB |
test_515_8606048_-25818144_8606048.txt | AC | 26 ms | 796 KB |
test_522_2286376_-230923976_-18291008.txt | AC | 25 ms | 784 KB |
test_5_318547875_955643625_-637095750AB.txt | AC | 19 ms | 792 KB |
test_5_704387671_-704387671_0AB.txt | AC | 20 ms | 792 KB |
test_5_82323965_639854915_-688317394AB.txt | AC | 22 ms | 712 KB |
test_676_198114948_0_792459792.txt | AC | 30 ms | 792 KB |
test_688_151937211_-286341114_10198771.txt | AC | 34 ms | 920 KB |
test_6_187422602_374845204_-374845204AB.txt | AC | 21 ms | 792 KB |
test_6_346164451_0_0AB.txt | AC | 22 ms | 792 KB |
test_6_99058019_194123640_-837769837AB.txt | AC | 22 ms | 916 KB |
test_71_367604060_367604060_0.txt | AC | 22 ms | 792 KB |
test_752_120973200_0_-725839200.txt | AC | 33 ms | 796 KB |
test_772_881340073_0_0.txt | AC | 35 ms | 800 KB |
test_777_125719576_-499451637_822057459.txt | AC | 23 ms | 792 KB |
test_7_166330212_166330212_-332660424AB.txt | AC | 21 ms | 720 KB |
test_7_89698746_448493730_-179397492AB.txt | AC | 21 ms | 784 KB |
test_839_166155061_0_-332310122.txt | AC | 34 ms | 792 KB |
test_839_923157_923157_564972084.txt | AC | 36 ms | 800 KB |
test_849_415705_290993500_0.txt | AC | 34 ms | 804 KB |
test_873_418406_2928842_322172620.txt | AC | 35 ms | 808 KB |
test_8_10000000_-40000000_-40000000AB.txt | AC | 21 ms | 796 KB |
test_8_10000000_0_80000000AB.txt | AC | 23 ms | 792 KB |
test_8_10000000_80000000_0AB.txt | AC | 21 ms | 792 KB |
test_981_159373724_-637494896_-159373724.txt | AC | 43 ms | 792 KB |
test_9_283198156_849594468_849594468B.txt | AC | 21 ms | 716 KB |