結果
問題 | No.1706 Many Bus Stops (hard) |
ユーザー | miscalc |
提出日時 | 2021-10-08 23:39:14 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,115 bytes |
コンパイル時間 | 2,461 ms |
コンパイル使用メモリ | 211,632 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-23 07:58:04 |
合計ジャッジ時間 | 3,703 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 1 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,940 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
6,940 KB |
testcase_27 | AC | 2 ms
6,940 KB |
testcase_28 | AC | 2 ms
6,940 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 | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,944 KB |
testcase_36 | AC | 2 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,944 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 2 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,944 KB |
testcase_41 | AC | 2 ms
6,940 KB |
testcase_42 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/modint> using namespace std; using namespace atcoder; //using mint = modint998244353; using mint = modint1000000007; using ll = long long; using ld = long double; using pll = pair<ll, ll>; using tlll = tuple<ll, ll, ll>; constexpr ll INF = 1LL << 60; template<class T> bool chmin(T& a, T b) {if (a > b) {a = b; return true;} return false;} template<class T> bool chmax(T& a, T b) {if (a < b) {a = b; return true;} return false;} ll safemod(ll A, ll M) {return (A % M + M) % M;} ll divfloor(ll A, ll B) {if (B < 0) {return divfloor(-A, -B);} return (A - safemod(A, B)) / B;} ll divceil(ll A, ll B) {if (B < 0) {return divceil(-A, -B);} return divfloor(A + B - 1, B);} #define FINALANS(A) do {cout << (A) << '\n'; exit(0);} while (false) using mmat = vector<vector<mint>>; mmat mmatrixprod(mmat &A1, mmat &A2) { ll n1 = A1.size(), n2 = A2.size(); ll m1 = A1.front().size(), m2 = A2.front().size(); if (n2 != m1) { cerr << "Error: matrix product is not defined\n"; abort(); } mmat ret(n1, vector<mint>(m2, 0)); for (ll i = 0; i < n1; i++) { for (ll j = 0; j < m2; j++) { for (ll k = 0; k < n2; k++) { ret[i][j] += A1[i][k] * A2[k][j]; } } } return ret; } mmat mmatrixpow(mmat &A1, ll k) { ll n = A1.size(); mmat A10(n, vector<mint>(n, 0)); for (ll i = 0; i < n; i++) { for (ll j = 0; j < n; j++) { A10[i][j] = A1[i][j]; } } mmat ret(n, vector<mint>(n, 0)); for (ll i = 0; i < n; i++) { ret[i][i] = 1; } while (k > 0) { if ((k & 1) != 0) ret = mmatrixprod(ret, A10); A10 = mmatrixprod(A10, A10); k >>= 1; } return ret; } int main() { ll C, N, M; cin >> C >> N >> M; const mint inv = mint(1) / C; mmat A = {{inv, 0, 0, inv}, {0, inv, (C - 1) * inv, (C - 2) * inv}, {1, 0, 0, 0}, {0, 1, 0, 0}}; mmat pwA = mmatrixpow(A, N - 1); mmat x = {{inv}, {0}, {1}, {0}}; mmat y = mmatrixprod(pwA, x); mint tmp = y.at(0).at(0); mint ans = 1 - (1 - tmp).pow(M); cout << ans.val() << endl; }