#894458 (C++14) No.2389 Cheating Code Golf

提出ソース

結果

問題	No.2389 Cheating Code Golf
ユーザー	woodywoody
提出日時	2023-07-22 02:34:49
言語	C++14 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	19 ms / 2,000 ms
コード長	5,355 bytes
コンパイル時間	3,723 ms
コンパイル使用メモリ	232,768 KB
実行使用メモリ	6,944 KB
最終ジャッジ日時	2024-09-22 03:51:40
合計ジャッジ時間	5,304 ms
ジャッジサーバーID （参考情報）	judge1 / judge3

このコードへのチャレンジ
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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	2 ms 6,816 KB
testcase_01	AC	2 ms 6,944 KB
testcase_02	AC	2 ms 6,940 KB
testcase_03	AC	4 ms 6,944 KB
testcase_04	AC	8 ms 6,940 KB
testcase_05	AC	2 ms 6,940 KB
testcase_06	AC	2 ms 6,944 KB
testcase_07	AC	1 ms 6,940 KB
testcase_08	AC	19 ms 6,944 KB
testcase_09	AC	2 ms 6,944 KB
testcase_10	AC	1 ms 6,944 KB
testcase_11	AC	2 ms 6,940 KB
testcase_12	AC	1 ms 6,940 KB
testcase_13	AC	2 ms 6,944 KB
testcase_14	AC	2 ms 6,940 KB
testcase_15	AC	2 ms 6,944 KB
testcase_16	AC	2 ms 6,940 KB
testcase_17	AC	2 ms 6,944 KB
testcase_18	AC	2 ms 6,940 KB
testcase_19	AC	2 ms 6,944 KB
testcase_20	AC	1 ms 6,944 KB
testcase_21	AC	2 ms 6,944 KB
testcase_22	AC	2 ms 6,944 KB
testcase_23	AC	2 ms 6,940 KB
testcase_24	AC	2 ms 6,944 KB
testcase_25	AC	2 ms 6,940 KB
testcase_26	AC	2 ms 6,944 KB
testcase_27	AC	2 ms 6,944 KB
testcase_28	AC	2 ms 6,944 KB
testcase_29	AC	2 ms 6,940 KB
testcase_30	AC	2 ms 6,944 KB
testcase_31	AC	2 ms 6,944 KB
testcase_32	AC	2 ms 6,940 KB
testcase_33	AC	2 ms 6,944 KB
testcase_34	AC	3 ms 6,944 KB
testcase_35	AC	2 ms 6,940 KB
testcase_36	AC	4 ms 6,944 KB
testcase_37	AC	2 ms 6,944 KB
testcase_38	AC	4 ms 6,940 KB
testcase_39	AC	2 ms 6,944 KB
testcase_40	AC	2 ms 6,944 KB
testcase_41	AC	2 ms 6,940 KB
testcase_42	AC	2 ms 6,940 KB
testcase_43	AC	2 ms 6,940 KB
testcase_44	AC	2 ms 6,944 KB
testcase_45	AC	2 ms 6,944 KB
testcase_46	AC	2 ms 6,944 KB
testcase_47	AC	2 ms 6,940 KB
testcase_48	AC	2 ms 6,944 KB
testcase_49	AC	2 ms 6,940 KB
testcase_50	AC	1 ms 6,944 KB
testcase_51	AC	2 ms 6,940 KB
testcase_52	AC	2 ms 6,940 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,b) for(int i=0;i<b;i++)
#define rrep(i,b) for(int i=b-1;i>=0;i--)
#define rep1(i,b) for(int i=1;i<b;i++)
#define repx(i,x,b) for(int i=x;i<b;i++)
#define rrepx(i,x,b) for(int i=b-1;i>=x;i--)
#define fore(i,a) for(auto& i:a)
#define rng(x) (x).begin(), (x).end()
#define rrng(x) (x).rbegin(), (x).rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define fi first
#define se second
#define pcnt __builtin_popcountll

using namespace std;
using namespace atcoder;

using ll = long long;
using ld = long double;
template<typename T> using mpq = priority_queue<T, vector<T>, greater<T>>;
template<typename T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<typename T> bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
template<typename T> ll sumv(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;}
bool yn(bool a) { if(a) {cout << "Yes" << endl; return true;} else {cout << "No" << endl; return false;}}
#define retval(x) {cout << #x << endl; return;}
#define cout2(x,y) cout << x << " " << y << endl;
#define coutp(p) cout << p.fi << " " << p.se << endl;
#define out cout << ans << endl;
#define outd cout << fixed << setprecision(20) << ans << endl;
#define outm cout << ans.val() << endl;
#define outv fore(yans , ans) cout << yans << "\n";
#define outdv fore(yans , ans) cout << yans.val() << "\n";
#define coutv(v) {fore(vy , v) {cout << vy << " ";} cout << endl;}
#define coutv2(v) fore(vy , v) cout << vy << "\n";
#define coutvm(v) {fore(vy , v) {cout << vy.val() << " ";} cout << endl;}
#define coutvm2(v) fore(vy , v) cout << vy.val() << "\n";
using pll = pair<ll,ll>;using pil = pair<int,ll>;using pli = pair<ll,int>;using pii = pair<int,int>;using pdd = pair<ld,ld>;
using vi = vector<int>;using vd = vector<ld>;using vl = vector<ll>;using vs = vector<string>;using vb = vector<bool>;
using vpii = vector<pii>;using vpli = vector<pli>;using vpll = vector<pll>;using vpil = vector<pil>;
using vvi = vector<vector<int>>;using vvl = vector<vector<ll>>;using vvs = vector<vector<string>>;using vvb = vector<vector<bool>>;
using vvpii = vector<vector<pii>>;using vvpli = vector<vector<pli>>;using vvpll = vector<vpll>;using vvpil = vector<vpil>;
using mint = modint998244353;
//using mint = modint1000000007;
//using mint = dynamic_modint<0>;
using vm = vector<mint>;
using vvm = vector<vector<mint>>;
vector<int> dx={1,0,-1,0,1,1,-1,-1},dy={0,1,0,-1,1,-1,1,-1};
ll gcd(ll a, ll b) { return a?gcd(b%a,a):b;}
ll lcm(ll a, ll b) { return a/gcd(a,b)*b;}
#define yes {cout <<"Yes"<<endl;}
#define no {cout <<"No"<<endl;}
const double eps = 1e-10;
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
#ifdef MY_LOCAL_DEBUG
#define show(x) cerr<<#x<<" = "<<x<<endl
#define showp(p) cerr<<#p<<" = "<<p.fi<<" : "<<p.se<<endl
#define show2(x,y) cerr<<#x<<" = "<<x<<" : "<<#y<<" = "<<y<<endl
#define show3(x,y,z) cerr<<#x<<" = "<<x<<" : "<<#y<<" = "<<y<<" : "<<#z<<" = "<<z<<endl
#define show4(x,y,z,x2) cerr<<#x<<" = "<<x<<" : "<<#y<<" = "<<y<<" : "<<#z<<" = "<<z<<" : "<<#x2<<" = "<<x2<<endl
#define test(x) cout << "test" << x << endl
#define showv(v) {fore(vy , v) {cout << vy << " ";} cout << endl;}
#define showv2(v) fore(vy , v) cout << vy << "\n";
#define showvm(v) {fore(vy , v) {cout << vy.val() << " ";} cout << endl;}
#define showvm2(v) fore(vy , v) cout << vy.val() << "\n";
#else
#define show(x)
#define showp(p)
#define show2(x,y)
#define show3(x,y,z)
#define show4(x,y,z,x2)
#define test(x)
#define showv(v)
#define showv2(v)
#define showvm(v)
#define showvm2(v)
#endif

void solve(){
    int n,m; cin>>n>>m;
    vi a,b,p;
    ld sum = 0;
    rep(i,n){
        int x,y,z; cin>>x>>y>>z;
        if (x <= y){
            sum += (ld)1/x;
        }else if(z == 1){
            sum += (ld)1/y;
        }else{
            a.pb(x);
            b.pb(y);
            p.pb(z);
        }
    }
    n = sz(a);
    int l = 1 << n;

    auto pass = [&](int s)->ld{
        if (s == 0) return 1;
        if (m == 0) return 0;
        vd dp(m);
        dp[0] = 1;
        rep(i,n){
            if ((s>>i&1) == 0) continue;
            vd tmp(m);
            swap(tmp,dp);
            ld win = (ld)1/p[i];
            ld lose = (ld)1 - win;
            rep(j,m){
                ld now = 1;
                rep(cnt,m){
                    int nj = j+cnt;
                    if (nj>m-1) break;
                    dp[nj] += tmp[j]*now*win;
                    now *= lose;
                }
            }
        }
        ld ret = 0;
        rep(i,m) ret += dp[i];
        return ret;
    };

    vd dp(l);
    rep(i,l){
        ld allPass = pass(i);
        ld coef = 0;
        rep(j,n){
            if ((i>>j&1)==1) coef += (ld)1/b[j];
            else coef += (ld)1/a[j];
        }
        rep(j,n){
            if ((i>>j&1) == 1) continue;
            int ni = i + (1<<j);
            ld nxtAllPass = pass(ni);
            assert(allPass >= nxtAllPass);
            chmax(dp[ni], dp[i]+(allPass - nxtAllPass)*coef);
        }
    }
    ld ans = dp[l-1];
    ld coef = 0;
    fore(y , b) coef += (ld)1/y;
    ans += pass(l-1)*coef + sum;
    outd;

    return;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);

    int t = 1;
    //cin>>t;

    rep(i,t){
        solve();
    }

    return 0;
}

yukicoder

結果

テストケース

ソースコード