結果
問題 | No.144 エラトステネスのざる |
ユーザー | YFuka86 |
提出日時 | 2022-05-07 17:05:57 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 78 ms / 2,000 ms |
コード長 | 4,239 bytes |
コンパイル時間 | 1,894 ms |
コンパイル使用メモリ | 180,800 KB |
実行使用メモリ | 19,236 KB |
最終ジャッジ日時 | 2024-07-06 22:25:08 |
合計ジャッジ時間 | 3,166 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 1 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 75 ms
19,236 KB |
testcase_14 | AC | 73 ms
18,968 KB |
testcase_15 | AC | 72 ms
19,152 KB |
testcase_16 | AC | 72 ms
18,960 KB |
testcase_17 | AC | 78 ms
18,964 KB |
testcase_18 | AC | 71 ms
19,140 KB |
testcase_19 | AC | 75 ms
19,236 KB |
ソースコード
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> #define rep(i,n) for(ll i=0;i<(ll)(n);i++) #define rep_r(i,n) for(ll i=(ll)(n)-1;i>=0;i--) #define rep2(i,sta,n) for(ll i=sta;i<(ll)(n);i++) #define rep2_r(i,sta,n) for(ll i=(ll)(n)-1;i>=sta;i--) #define all(v) (v).begin(),(v).end() #define pb push_back #define mp make_pair using namespace std; typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef pair<int, int> P; typedef pair<ll, ll> LP; typedef map<ll, ll> LM; typedef tuple<ll, ll, ll> LT; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<vvl> vvvl; typedef vector<LP> vlp; typedef vector<vlp> vvlp; typedef vector<string> vs; typedef vector<vs> vvs; typedef vector<ld> vd; typedef vector<vd> vvd; typedef vector<bool> vb; const int INF = numeric_limits<int>::max() / 2 - 1e6; const ll LINF = LLONG_MAX / 2 - 1e6; const double DINF = numeric_limits<double>::infinity(); using A = ll; template<typename Q> A iquery(Q q, string str = "? ") { cout << str << q << "\n"; cout.flush(); A a; cin >> a; return a; } template<typename A> void ianswer(A a, string str = "! ") { cout << str << a << "\n"; cout.flush(); } struct RandGen { using ud = uniform_int_distribution<ll>; mt19937 mt; RandGen() : mt(chrono::steady_clock::now().time_since_epoch().count()) {} ll lint(ll a, ll b) { ud d(a, b - 1); return d(mt); } vl vlint(ll l, ll a, ll b) { ud d(a, b - 1); vl ret(l); rep(i, l) ret[i] = d(mt); return ret; } vl vlperm(ll l) { vl perm(l); iota(all(perm), 1); random_shuffle(all(perm)); return perm; } string saz(ll l, ll a = 0, ll z = 26) { vl az = vlint(l, a, z); string s; rep(i, l) s.pb('a' + az[i]); return s; } string snum(ll l, ll zero = 0, ll ten = 10) { vl zt = vlint(l, zero, ten); string s; rep(i, l) s.pb('0' + zt[i]); return s; } }; int ceil_pow2(ll n) { int x = 0; while ((1ULL << x) < (unsigned long long)(n)) x++; return x; } int floor_pow2(ll n) { int x = 0; while ((1ULL << (x + 1)) <= (unsigned long long)(n)) x++; return x; } ll POW(ll x, int n) { assert(n >= 0); ll res = 1; for(; n; n >>= 1, x *= x) if(n & 1) res *= x; return res; } ll sqrt_ceil(ll x) { ll l = -1, r = x; while (r - l > 1) { ll m = (l + r) / 2; if (m * m >= x) r = m; else l = m; } return r; } template <typename T, typename S> T ceil(T x, S y) { assert(y); return (y < 0 ? ceil(-x, -y) : (x > 0 ? (x + y - 1) / y : x / y)); } template <typename T, typename S> T floor(T x, S y) { assert(y); return (y < 0 ? floor(-x, -y) : (x > 0 ? x / y : (x - y + 1) / y)); } template<typename T> void uniq(vector<T>&a){ sort(all(a)); a.erase(unique(all(a)), a.end()); } template<typename T> void comp(vector<T>&a){ vector<T> b = a; uniq(b); rep(i, a.size()) a[i] = lower_bound(all(b), a[i]) - b.begin(); } template<typename T> void coutarray(vector<T>& v, int offset = 0) { rep(i, v.size()) { if (i > 0) cout << " "; cout << v[i] + offset; } cout << "\n"; } template<typename T> void coutmatrix(vector<vector<T>>& v) { rep(i, v.size()) { rep(j, v[i].size()) { if (j > 0) cout << " "; cout << v[i][j]; } cout << "\n";} } template<typename K, typename V> void coutmap(map<K, V> & m) { for (const auto& kv : m) { cout << kv.first << ":" << kv.second << " "; } cout << "\n"; } template<typename T> void coutbin(T &a, int d) { for (int i = d - 1; i >= 0; i--) cout << ((a >> i) & (T)1); cout << "\n"; } template<class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1;} return 0; } template<class T> bool chmax(T &a, const T &b) { if (b > a) { a = b; return 1;} return 0; } template<class T> int lbs(vector<T> &a, const T &b) { return lower_bound(all(a), b) - a.begin(); }; template<class T> int ubs(vector<T> &a, const T &b) { return upper_bound(all(a), b) - a.begin(); }; vl dx = {1, 0, -1, 0}; vl dy = {0, -1, 0, 1}; void solve() { ll N; cin >> N; ld p; cin >> p; vd prob(N + 1, 1); rep2(i, 2, N) { for (ll x = 2 * i; x <= N; x += i) { prob[x] *= 1 - p; } } // coutarray(prob); cout << fixed << setprecision(7) << accumulate(prob.begin() + 2, prob.end(), 0.0) << "\n"; } signed main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int t = 1; //cin >> t; while (t--) solve(); }