結果
問題 | No.2066 Simple Math ! |
ユーザー | karinohito |
提出日時 | 2022-09-02 22:05:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 494 ms / 2,000 ms |
コード長 | 3,103 bytes |
コンパイル時間 | 2,203 ms |
コンパイル使用メモリ | 204,056 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-16 03:37:44 |
合計ジャッジ時間 | 12,514 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 21 ms
5,248 KB |
testcase_02 | AC | 32 ms
5,248 KB |
testcase_03 | AC | 27 ms
5,248 KB |
testcase_04 | AC | 472 ms
5,248 KB |
testcase_05 | AC | 473 ms
5,248 KB |
testcase_06 | AC | 474 ms
5,248 KB |
testcase_07 | AC | 472 ms
5,248 KB |
testcase_08 | AC | 471 ms
5,248 KB |
testcase_09 | AC | 492 ms
5,248 KB |
testcase_10 | AC | 490 ms
5,248 KB |
testcase_11 | AC | 488 ms
5,248 KB |
testcase_12 | AC | 490 ms
5,248 KB |
testcase_13 | AC | 494 ms
5,248 KB |
testcase_14 | AC | 426 ms
5,248 KB |
testcase_15 | AC | 425 ms
5,248 KB |
testcase_16 | AC | 426 ms
5,248 KB |
testcase_17 | AC | 427 ms
5,248 KB |
testcase_18 | AC | 429 ms
5,248 KB |
testcase_19 | AC | 145 ms
5,248 KB |
testcase_20 | AC | 143 ms
5,248 KB |
testcase_21 | AC | 143 ms
5,248 KB |
testcase_22 | AC | 145 ms
5,248 KB |
testcase_23 | AC | 146 ms
5,248 KB |
testcase_24 | AC | 236 ms
5,248 KB |
testcase_25 | AC | 235 ms
5,248 KB |
testcase_26 | AC | 235 ms
5,248 KB |
testcase_27 | AC | 234 ms
5,248 KB |
testcase_28 | AC | 235 ms
5,248 KB |
testcase_29 | AC | 57 ms
5,248 KB |
testcase_30 | AC | 29 ms
5,248 KB |
testcase_31 | AC | 26 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> #include <random> using namespace std; //#include <atcoder/all> //using namespace atcoder; using ll = long long; using vll = vector<ll>; using vvll = vector<vll>; using vvvll = vector<vvll>; using vvvvll = vector<vvvll>; using vvvvvll = vector<vvvvll>; using vvvvvvll = vector<vvvvvll>; using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>; using vvvvb = vector<vvvb>; using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>; using vvvvd = vector<vvvd>; using vvvvvd = vector<vvvvd>; #define all(A) A.begin(),A.end() #define ALL(A) A.begin(),A.end() #define rep(i, n) for (ll i = 0; i < (ll) (n); i++) using pqr = priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>>; template<class T> bool chmax(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p < q) { p = q; return 1; } else { return 0; } } template<class T> bool chmin(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p > q) { p = q; return 1; } else { return 0; } } ll gcd(ll(a), ll(b)) { if (b == 0)return a; ll c = a; while (a % b != 0) { c = a % b; a = b; b = c; } return b; } vector<ll> fact, factinv, inv; ll mod = 1e9 + 7; void prenCkModp(ll n) { fact.resize(n + 5); factinv.resize(n + 5); inv.resize(n + 5); fact.at(0) = fact.at(1) = 1; factinv.at(0) = factinv.at(1) = 1; inv.at(1) = 1; for (ll i = 2; i < n + 5; i++) { fact.at(i) = (fact.at(i - 1) * i) % mod; inv.at(i) = mod - (inv.at(mod % i) * (mod / i)) % mod; factinv.at(i) = (factinv.at(i - 1) * inv.at(i)) % mod; } } ll nCk(ll n, ll k) { if (n < k) return 0; return fact.at(n) * (factinv.at(k) * factinv.at(n - k) % mod) % mod; } ll floor_sum(ll n, ll m, ll a, ll b) { ll ans = 0; if (a >= m) { ans += (n - 1) * n * (a / m) / 2; a %= m; } if (b >= m) { ans += n * (b / m); b %= m; } ll y_max = (a * n + b) / m, x_max = (y_max * m - b); if (y_max == 0) return ans; ans += (n - (x_max + a - 1) / a) * y_max; ans += floor_sum(y_max, a, m, (a - x_max % a) % a); return ans; } int main() { ll T; cin >> T; rep(t, T) { ll P, Q, K; cin >> P >> Q >> K; ll G = gcd(P, Q); P /= G; Q /= G; if (P > Q)swap(P, Q); if (K > (P * Q - P - Q) - (P - 1) * (Q - 1) / 2) { ll an = P * Q - P - Q + 1; an += K - ((P * Q - P - Q) - (P - 1) * (Q - 1) / 2) - 1; cout << an * G << endl; continue; } ll L = 0, R = P * Q - P - Q + 1; while (R - L > 1) { ll mid = (R + L) / 2; ll M = mid / P; ll res = floor_sum(M + 1, Q,Q-P, mid); res += M+1; res -= M * (M + 1) / 2; res--; if (res >= K)R = mid; else L = mid; } cout <<R*G << endl; } }