結果
問題 | No.1196 A lazy student |
ユーザー | heno239 |
提出日時 | 2020-08-22 14:46:18 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 114 ms / 1,000 ms |
コード長 | 4,420 bytes |
コンパイル時間 | 1,204 ms |
コンパイル使用メモリ | 115,364 KB |
実行使用メモリ | 120,792 KB |
最終ジャッジ日時 | 2024-10-15 09:04:08 |
合計ジャッジ時間 | 2,306 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 17 ms
19,904 KB |
testcase_01 | AC | 17 ms
20,036 KB |
testcase_02 | AC | 17 ms
19,908 KB |
testcase_03 | AC | 17 ms
20,032 KB |
testcase_04 | AC | 17 ms
19,908 KB |
testcase_05 | AC | 17 ms
19,908 KB |
testcase_06 | AC | 17 ms
19,908 KB |
testcase_07 | AC | 18 ms
20,032 KB |
testcase_08 | AC | 21 ms
20,568 KB |
testcase_09 | AC | 25 ms
20,828 KB |
testcase_10 | AC | 25 ms
20,888 KB |
testcase_11 | AC | 25 ms
20,952 KB |
testcase_12 | AC | 18 ms
20,032 KB |
testcase_13 | AC | 18 ms
19,908 KB |
testcase_14 | AC | 17 ms
19,912 KB |
testcase_15 | AC | 114 ms
120,792 KB |
testcase_16 | AC | 38 ms
36,696 KB |
コンパイルメッセージ
main.cpp: In function 'LDP calc(std::string&, int&)': main.cpp:182:1: warning: control reaches end of non-void function [-Wreturn-type] 182 | } | ^
ソースコード
#include<iostream> #include<string> #include<cstdio> #include<vector> #include<cmath> #include<algorithm> #include<functional> #include<iomanip> #include<queue> #include<ciso646> #include<random> #include<map> #include<set> #include<bitset> #include<stack> #include<unordered_map> #include<utility> #include<cassert> #include<complex> #include<numeric> #include<array> using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 998244353; const ll INF = mod * mod; typedef pair<int, int>P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i<n;i++) #define per(i,n) for(int i=n-1;i>=0;i--) #define Rep(i,sta,n) for(int i=sta;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) #define per1(i,n) for(int i=n;i>=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair<ll, ll> LP; typedef double ld; typedef pair<ld, ld> LDP; const ld eps = 1e-12; const ld pi = acosl(-1.0); ll mod_pow(ll x, ll n, ll m) { ll res = 1; while (n) { if (n & 1)res = res * x % m; x = x * x % m; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n % mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, ll n) { if (n == 0)return modint(1); modint res = (a * a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } const int max_n = 1 << 20; modint fact[max_n], factinv[max_n]; void init_f() { fact[0] = modint(1); for (int i = 0; i < max_n - 1; i++) { fact[i + 1] = fact[i] * modint(i + 1); } factinv[max_n - 1] = modint(1) / fact[max_n - 1]; for (int i = max_n - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * modint(i + 1); } } modint comb(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[b] * factinv[a - b]; } ul gcd(ul a, ul b) { if (a < b)swap(a, b); while (b) { ul r = a % b; a = b; b = r; } return a; } LDP expr(string& s, int& i); LDP func(string& s, int& i); LDP calc(string& s, int& i); ld p, q, r; LDP expr(string& s, int& i) { LDP res = func(s, i); while (i < s.size() && s[i] == 'o') { //or i += 2; LDP nex = func(s, i); LDP z = { 0,0 }; z.first = res.first * nex.first; z.second = 1 - z.first; res = { 0,0 }; res.first = r * z.second + (1 - r) * z.first; res.second = r * z.first + (1 - r) * z.second; } return res; } LDP func(string& s, int& i) { LDP res = calc(s, i); while (i < s.size() && s[i] == 'a') { //and i += 3; LDP nex = calc(s, i); LDP z = { 0,0 }; z.second = res.second * nex.second; z.first = 1 - z.second; res = { 0,0 }; res.first = r * z.second + (1 - r) * z.first; res.second = r * z.first + (1 - r) * z.second; } return res; } LDP calc(string& s, int& i) { if (s[i] == 'Y' || s[i] == 'N') { LDP res = { 0,0 }; if (s[i] == 'Y') { //YES i += 3; res.second = 1; } else { //NO i += 2; res.first = 1; } return res; } if (s[i] == '(') { //( i++; LDP res = expr(s, i); //) i++; return res; } if (s[i] == 'r') { //random i += 6; //( i++; LDP r1 = expr(s, i); LDP r2 = expr(s, i); LDP res = { 0,0 }; ld t = r1.second * r2.second; res.first += (1 - p) * t; res.second += p * t; res.first += (1 - q) * (1 - t); res.second += q* (1 - t); //) i++; return res; } } void solve() { int n; cin >> n; int i = 0; cin >> p >> q >> r; string s; cin >> s; LDP p = expr(s, i); int ans = p.second * 100; cout << ans << "\n"; } signed main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(10); init_f(); //expr(); //int t; cin >> t; rep(i, t) //while (cin >> n >> m>>s1>>s2>>t, n) solve(); return 0; }