結果
問題 | No.2452 Incline |
ユーザー | 👑 AngrySadEight |
提出日時 | 2023-09-01 22:04:52 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,032 bytes |
コンパイル時間 | 4,464 ms |
コンパイル使用メモリ | 221,004 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-11 03:53:32 |
合計ジャッジ時間 | 8,477 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 1 ms
5,248 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <algorithm> #include <atcoder/all> #include <bitset> #include <cassert> #include <cmath> #include <ctime> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using namespace atcoder; typedef long long ll; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define repk(i, k, n) for (int i = k; i < (int)(n); i++) #define all(v) v.begin(), v.end() #define mod1 1000000007 #define mod2 998244353 #define mod3 100000007 #define vi vector<int> #define vs vector<string> #define vc vector<char> #define vl vector<ll> #define vb vector<bool> #define vvi vector<vector<int>> #define vvc vector<vector<char>> #define vvl vector<vector<ll>> #define vvb vector<vector<bool>> #define vvvi vector<vector<vector<int>>> #define vvvl vector<vector<vector<ll>>> #define pii pair<int, int> #define pil pair<int, ll> #define pli pair<ll, int> #define pll pair<ll, ll> #define vpii vector<pair<int, int>> #define vpll vector<pair<ll, ll>> #define vvpii vector<vector<pair<int, int>>> #define vvpll vector<vector<pair<ll, ll>>> using mint = modint998244353; template <typename T> void debug(T e) { cerr << e << endl; } template <typename T> void debug(vector<T> &v) { rep(i, v.size()) { cerr << v[i] << " "; } cerr << endl; } template <typename T> void debug(vector<vector<T>> &v) { rep(i, v.size()) { rep(j, v[i].size()) { cerr << v[i][j] << " "; } cerr << endl; } } template <typename T> void debug(vector<pair<T, T>> &v) { rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; } } template <typename T> void debug(set<T> &st) { for (auto itr = st.begin(); itr != st.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(multiset<T> &ms) { for (auto itr = ms.begin(); itr != ms.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(map<T, T> &mp) { for (auto itr = mp.begin(); itr != mp.end(); itr++) { cerr << itr->first << " " << itr->second << endl; } } void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << H << " "; debug_out(T...); } ll my_pow(ll x, ll n, ll mod) { // 繰り返し二乗法.x^nをmodで割った余り. ll ret; if (n == 0) { ret = 1; } else if (n % 2 == 1) { ret = (x * my_pow((x * x) % mod, n / 2, mod)) % mod; } else { ret = my_pow((x * x) % mod, n / 2, mod); } return ret; } ll inv(ll x, ll mod) { return my_pow(x, mod - 2, mod); } int main() { ll T; cin >> T; while (T--) { ll N, M, L, R; cin >> N >> M >> L >> R; ll ans = (R - L + 1) % mod2; // 非負のときの 0 以上 R 以下の個数 ll div_r = R / (N - 1); ll rem_r = R % (N - 1); // debug_out(div_r, rem_r); ans = (ans + (((rem_r + 1) % mod2) * (div_r % mod2)) % mod2) % mod2; if (div_r >= 1) { ll times = ((div_r % mod2) * ((div_r - 1) % mod2)) % mod2; times = (times * inv(2LL, mod2)) % mod2; times = (times * (N - 1)) % mod2; ans = (ans + times) % mod2; } if (L >= 1) { ll div_l = (L - 1) / (N - 1); ll rem_l = (L - 1) % (N - 1); ans = (ans + mod2 - (((rem_l + 1) % mod2) * (div_l % mod2)) % mod2) % mod2; if (div_l >= 1) { ll times = ((div_l % mod2) * ((div_l - 1) % mod2)) % mod2; times = (times * inv(2LL, mod2)) % mod2; ans = (ans + mod2 - times) % mod2; } } ll tmp = L; L = M - R; R = M - tmp; // debug_out(L, R); // 負のときも同じことを繰り返す div_r = R / (N - 1); rem_r = R % (N - 1); ans = (ans + (((rem_r + 1) % mod2) * (div_r % mod2)) % mod2) % mod2; if (div_r >= 1) { ll times = ((div_r % mod2) * ((div_r - 1) % mod2)) % mod2; times = (times * inv(2LL, mod2)) % mod2; ans = (ans + times) % mod2; } if (L >= 1) { ll div_l = (L - 1) / (N - 1); ll rem_l = (L - 1) % (N - 1); ans = (ans + mod2 - (((rem_l + 1) % mod2) * (div_l % mod2)) % mod2) % mod2; if (div_l >= 1) { ll times = ((div_l % mod2) * ((div_l - 1) % mod2)) % mod2; times = (times * inv(2LL, mod2)) % mod2; ans = (ans + mod2 - times) % mod2; } } cout << ans << endl; } }