結果
問題 | No.2302 Carry X Times |
ユーザー |
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提出日時 | 2023-05-12 22:22:57 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 44 ms / 2,000 ms |
コード長 | 2,727 bytes |
コンパイル時間 | 1,139 ms |
コンパイル使用メモリ | 124,240 KB |
最終ジャッジ日時 | 2025-02-12 23:09:37 |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 24 |
ソースコード
#include <iostream>#include <algorithm>#include <iomanip>#include <vector>#include <queue>#include <deque>#include <set>#include <map>#include <tuple>#include <cmath>#include <numeric>#include <functional>#include <cassert>#include <atcoder/modint>#define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl;#define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl;template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }using namespace std;typedef long long ll;template<typename T>vector<vector<T>> vec2d(int n, int m, T v){return vector<vector<T>>(n, vector<T>(m, v));}template<typename T>vector<vector<vector<T>>> vec3d(int n, int m, int k, T v){return vector<vector<vector<T>>>(n, vector<vector<T>>(m, vector<T>(k, v)));}template<typename T>void print_vector(vector<T> v, char delimiter=' '){if(v.empty()) {cout << endl;return;}for(int i = 0; i+1 < v.size(); i++) cout << v[i] << delimiter;cout << v.back() << endl;}using mint = atcoder::modint998244353;ostream& operator<<(ostream& os, const mint& m){os << m.val();return os;}using T = tuple<ll, ll, int, int>;mint sub_solve(ll a, ll b, int x, int carry){static map<T, mint> memo;if(a > b) swap(a, b);T key(a, b, x, carry);if(b == 0) {if(x == 0) return mint(1);return mint(0);}if(memo.count(key)) return memo[key];mint ans = 0;if(b < 10){if(x >= 2){return mint(0);}for(int i = 0; i <= a; i++){for(int j = 0; j <= b; j++){if(i+j+carry >= 10) {if(x == 1) ans++;}else{if(x == 0) ans++;}}}memo[key] = ans;return ans;}for(int aa = 0; aa <= 9 && aa <= a; aa++){for(int bb = 0; bb <= 9 && bb <= b; bb++){ll a_rem = (a-aa)/10;ll b_rem = (b-bb)/10;int next_carry = aa+bb+carry >= 10 ? 1 : 0;int x_rem = x-next_carry;if(x_rem < 0) continue;ans += sub_solve(a_rem, b_rem, x_rem, next_carry);}}memo[key] = ans;return ans;}mint solve(ll n, int x){return sub_solve(n, n, x, 0);}int main(){ios::sync_with_stdio(false);cin.tie(0);cout << setprecision(10) << fixed;int t; cin >> t;while(t--) {ll n; cin >> n;int x; cin >> x;cout << solve(n, x) << endl;}}