結果
| 問題 |
No.1810 RGB Biscuits
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-01-14 22:12:30 |
| 言語 | C++17(clang) (17.0.6 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 26 ms / 2,000 ms |
| コード長 | 1,994 bytes |
| コンパイル時間 | 7,653 ms |
| コンパイル使用メモリ | 163,400 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-11-20 11:09:02 |
| 合計ジャッジ時間 | 6,247 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 20 |
ソースコード
/*
* Author: nskybytskyi
* Time: 2022-01-13 15:08:45
*/
#include <bits/stdc++.h>
using namespace std;
const int64_t mod = 1'000'000'007;
using matrix = vector<vector<int64_t>>;
const matrix eye = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
vector<int64_t> mmul(matrix lhs, vector<int64_t> rhs) {
vector<int64_t> res(3);
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
res[i] += lhs[i][j] * rhs[j];
res[i] %= mod;
}
}
return res;
}
matrix mmul(matrix lhs, matrix rhs) {
matrix ans(3, vector<int64_t>(3, 0));
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 3; ++k) {
ans[i][j] += lhs[i][k] * rhs[k][j];
ans[i][j] %= mod;
}
}
}
return ans;
}
matrix mpow(matrix base, int64_t exponent) {
matrix res = eye;
while (exponent) {
if (exponent & 1) {
res = mmul(res, base);
}
base = mmul(base, base);
exponent >>= 1;
}
return res;
}
int main() {
cin.tie(0)->sync_with_stdio(0);
int a, b, n;
cin >> a >> b >> n;
vector<pair<int64_t, int>> t(n);
for (int i = 0; i < n; ++i) {
cin >> t[i].first;
t[i].second = i;
}
sort(t.begin(), t.end());
matrix e = {{1, 0, 0}, {0, 1, 0}, {a, b, 1}},
o = {{0, 0, 1}, {1, 0, 0}, {0, 0, 0}};
matrix eo = mmul(e, o), oe = mmul(o, e);
vector<int64_t> curr = {1, 1, 0};
int64_t time = 0;
vector<int64_t> ans(n);
for (auto [ti, i] : t) {
if (time & 1) {
if (ti & 1) {
curr = mmul(mpow(eo, (ti - time) / 2), curr);
} else {
curr = mmul(o, curr);
curr = mmul(mpow(oe, (ti - time) / 2), curr);
}
} else {
if (ti & 1) {
curr = mmul(e, curr);
curr = mmul(mpow(eo, (ti - time) / 2), curr);
} else {
curr = mmul(mpow(oe, (ti - time) / 2), curr);
}
}
time = ti;
ans[i] = (curr[0] + curr[1] + curr[2]) % mod;
}
for (auto elem : ans) {
cout << elem << "\n";
}
return 0;
}