Submission #6907269


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define rep(i,N) for(int i=0,i##_max=(N);i<i##_max;++i)
#define repp(i,l,r) for(int i=(l),i##_max=(r);i<i##_max;++i)
#define per(i,N) for(int i=(N)-1;i>=0;--i)
#define perr(i,l,r) for(int i=r-1,i##_min(l);i>=i##_min;--i)
#define all(arr) (arr).begin(), (arr).end()
#define SP << " " <<
#define SPF << " "
#define SPEEDUP cin.tie(0);ios::sync_with_stdio(false);
#define MAX_I INT_MAX //1e9
#define MIN_I INT_MIN //-1e9
#define MAX_UI UINT_MAX //1e9
#define MAX_LL LLONG_MAX //1e18
#define MIN_LL LLONG_MIN //-1e18
#define MAX_ULL ULLONG_MAX //1e19
  typedef long long ll;
  typedef pair<int,int> PII;
  typedef pair<char,char> PCC;
  typedef pair<ll,ll> PLL;
  typedef pair<char,int> PCI;
  typedef pair<int,char> PIC;
  typedef pair<ll,int> PLI;
  typedef pair<int,ll> PIL; 
  typedef pair<ll,char> PLC; 
  typedef pair<char,ll> PCL; 

inline void YesNo(bool b){ cout << (b?"Yes" : "No") << endl;}
inline void YESNO(bool b){ cout << (b?"YES" : "NO") << endl;}
inline void Yay(bool b){ cout << (b?"Yay!" : ":(") << endl;}

const int N_MAX = 1010;
double eps = 1e-10;
double Pascal[N_MAX][N_MAX+1];

void init(){
  Pascal[0][0] = 1;
  repp(i,1,N_MAX){
    rep(j,i+1){
      if(j==0) Pascal[i][j] = Pascal[i-1][j]/2.0;
      else Pascal[i][j] = (Pascal[i-1][j-1] + Pascal[i-1][j])/2.0;
    }
  }
}

double solve(){
  int N,D;cin >> N >> D;
  int X,Y;cin >> X >> Y;
  X = abs(X);
  Y = abs(Y);
  if(X%D || Y%D){
    return 0;
  }
  X/=D;
  Y/=D;
  if(X+Y>N || (X+Y-N)%2 == 1){
    return 0;
  }

  double ret = 0.0;
  //左右に動く回数がx回.
  rep(i,N+1){
    int x = i;
    int y = N-x;
    if(x<abs(X) || y<abs(Y))continue;
    if((x-X)%2==1 || (y-Y)%2 == 1) continue;
    int nL=0,nR=0;
    (X>=0? nL : nR) += abs(X);
    x -= abs(X);
    nL += x/2;
    nR += x/2;

    int nU=0,nD=0;
    (Y>=0? nU : nD) += abs(Y);
    y -= abs(Y);
    nU += y/2;
    nD += y/2;

    int Times[5] = {N,nU,nD,nL,nR};
    int nums[5] = {1,1,1,1,1};
    double add = 1;
    int index = 0;
    int indexN = 1;
    while(indexN<=N || nums[4]<=Times[4]){
      while(add>eps && index<5){
        if(index==0) add /= 4.0;
          else add /= (double) nums[index];
        ++nums[index];
        if(nums[index]>Times[index])++index;
        if(index == 5) break;
      }
      while(add<1 && indexN<=N) add *= (double) indexN++;
      if(indexN>N && index<5){
        if(index==0) add /= 4.0;
          else add /= (double) nums[index];
        ++nums[index];
        if(nums[index]>Times[index])++index;
      }
    }
    ret += add;
  }
  return ret;
}

int main(void){
  SPEEDUP
  cout << setprecision(15);
  init();
  cout << solve() << endl;
  return 0;
}

Submission Info

Submission Time
Task D - 大ジャンプ
User mitsuki_AC
Language C++14 (GCC 5.4.1)
Score 90
Code Size 2805 Byte
Status WA
Exec Time 9 ms
Memory 7552 KB

Judge Result

Set Name part1 part2 All
Score / Max Score 90 / 90 0 / 10 0 / 1
Status
AC × 23
AC × 31
WA × 5
AC × 56
WA × 15
Set Name Test Cases
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 sample_01.txt, sample_02.txt, sample_03.txt, 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 4 ms 7552 KB
sample_02.txt AC 4 ms 7552 KB
sample_03.txt AC 4 ms 7552 KB
test_1000_1000000_-500000000_500000000.txt WA 4 ms 7552 KB
test_1000_1000000_0_-1000000000.txt WA 4 ms 7552 KB
test_1000_1000000_1000000000_0.txt WA 4 ms 7552 KB
test_1000_150305_97998860_-32315575.txt AC 4 ms 7552 KB
test_1000_1_0_0.txt WA 9 ms 7552 KB
test_1000_1_2_0.txt AC 9 ms 7552 KB
test_1000_1_2_2.txt WA 9 ms 7552 KB
test_1000_3308678_-800700076_-350719868.txt AC 7 ms 7552 KB
test_1000_3608549_811923525_689232859.txt AC 7 ms 7552 KB
test_1000_3728577_-145414503_-969430020.txt AC 4 ms 7552 KB
test_1000_537976_11297496_224335992.txt WA 7 ms 7552 KB
test_10_227248639_454497278_0B.txt AC 4 ms 7552 KB
test_11_692637325_-181424149_-938839075B.txt AC 4 ms 7552 KB
test_130_95365311_-667557177_-286095933.txt AC 4 ms 7552 KB
test_131_18204705_-145637640_0.txt AC 4 ms 7552 KB
test_13_260236679_-780710037_-520473358B.txt WA 4 ms 7552 KB
test_13_269280357_807841071_269280357B.txt AC 4 ms 7552 KB
test_13_96859935_0_-581159610B.txt AC 4 ms 7552 KB
test_16_40374395_-40374395_-565241530B.txt AC 4 ms 7552 KB
test_1_151403858_0_0AB.txt AC 4 ms 7552 KB
test_1_1_0_1AB.txt AC 4 ms 7552 KB
test_1_1_2_0AB.txt AC 4 ms 7552 KB
test_1_200416616_-430405070_-79858930AB.txt AC 4 ms 7552 KB
test_1_320861287_0_0AB.txt AC 4 ms 7552 KB
test_1_445441131_0_0AB.txt AC 4 ms 7552 KB
test_210_28974130_0_260767170.txt AC 4 ms 7552 KB
test_217_321156_24407856_22480920.txt AC 4 ms 7552 KB
test_21_304856339_609712678_914569017B.txt WA 4 ms 7552 KB
test_26_214390232_-857560928_428780464B.txt AC 4 ms 7552 KB
test_289_421462830_-487186374_-417635361.txt AC 4 ms 7552 KB
test_2_91743015_0_183486030AB.txt AC 4 ms 7552 KB
test_30_10000000_-300000000_0B.txt WA 4 ms 7552 KB
test_30_10000000_0_300000000B.txt WA 4 ms 7552 KB
test_30_10000000_150000000_-150000000B.txt WA 4 ms 7552 KB
test_30_54228128_0_813421920B.txt AC 4 ms 7552 KB
test_339_4475128_957677392_281933064.txt WA 4 ms 7552 KB
test_3_165357536_496072608_0AB.txt AC 4 ms 7552 KB
test_3_357154050_-106436394_768502001AB.txt AC 4 ms 7552 KB
test_3_721501125_-568833455_353553641AB.txt AC 4 ms 7552 KB
test_3_893846474_0_0AB.txt AC 4 ms 7552 KB
test_480_402960_-131767920_-34654560.txt AC 4 ms 7552 KB
test_4_291388018_-291388018_0AB.txt AC 4 ms 7552 KB
test_507_3516183_-879045750_-253165176.txt AC 4 ms 7552 KB
test_515_8606048_-25818144_8606048.txt AC 4 ms 7552 KB
test_522_2286376_-230923976_-18291008.txt AC 4 ms 7552 KB
test_5_318547875_955643625_-637095750AB.txt AC 4 ms 7552 KB
test_5_704387671_-704387671_0AB.txt AC 4 ms 7552 KB
test_5_82323965_639854915_-688317394AB.txt AC 4 ms 7552 KB
test_676_198114948_0_792459792.txt AC 6 ms 7552 KB
test_688_151937211_-286341114_10198771.txt AC 4 ms 7552 KB
test_6_187422602_374845204_-374845204AB.txt AC 4 ms 7552 KB
test_6_346164451_0_0AB.txt AC 4 ms 7552 KB
test_6_99058019_194123640_-837769837AB.txt AC 4 ms 7552 KB
test_71_367604060_367604060_0.txt WA 4 ms 7552 KB
test_752_120973200_0_-725839200.txt AC 7 ms 7552 KB
test_772_881340073_0_0.txt AC 7 ms 7552 KB
test_777_125719576_-499451637_822057459.txt AC 4 ms 7552 KB
test_7_166330212_166330212_-332660424AB.txt AC 4 ms 7552 KB
test_7_89698746_448493730_-179397492AB.txt AC 4 ms 7552 KB
test_839_166155061_0_-332310122.txt AC 4 ms 7552 KB
test_839_923157_923157_564972084.txt WA 5 ms 7552 KB
test_849_415705_290993500_0.txt AC 4 ms 7552 KB
test_873_418406_2928842_322172620.txt WA 4 ms 7552 KB
test_8_10000000_-40000000_-40000000AB.txt AC 4 ms 7552 KB
test_8_10000000_0_80000000AB.txt AC 4 ms 7552 KB
test_8_10000000_80000000_0AB.txt AC 4 ms 7552 KB
test_981_159373724_-637494896_-159373724.txt AC 9 ms 7552 KB
test_9_283198156_849594468_849594468B.txt AC 4 ms 7552 KB