結果
問題 | No.2406 Difference of Coordinate Squared |
ユーザー | silv723 |
提出日時 | 2023-08-04 22:24:29 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 138 ms / 2,000 ms |
コード長 | 5,279 bytes |
コンパイル時間 | 4,316 ms |
コンパイル使用メモリ | 266,848 KB |
実行使用メモリ | 50,304 KB |
最終ジャッジ日時 | 2024-05-05 01:40:16 |
合計ジャッジ時間 | 10,608 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
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 | 75 ms
50,176 KB |
testcase_01 | AC | 94 ms
50,176 KB |
testcase_02 | AC | 104 ms
50,176 KB |
testcase_03 | AC | 138 ms
50,176 KB |
testcase_04 | AC | 88 ms
50,176 KB |
testcase_05 | AC | 85 ms
50,176 KB |
testcase_06 | AC | 79 ms
50,176 KB |
testcase_07 | AC | 83 ms
50,304 KB |
testcase_08 | AC | 84 ms
50,176 KB |
testcase_09 | AC | 85 ms
50,176 KB |
testcase_10 | AC | 81 ms
50,176 KB |
testcase_11 | AC | 94 ms
50,176 KB |
testcase_12 | AC | 94 ms
50,048 KB |
testcase_13 | AC | 85 ms
50,176 KB |
testcase_14 | AC | 83 ms
50,176 KB |
testcase_15 | AC | 89 ms
50,176 KB |
testcase_16 | AC | 88 ms
50,176 KB |
testcase_17 | AC | 79 ms
50,176 KB |
testcase_18 | AC | 128 ms
50,176 KB |
testcase_19 | AC | 89 ms
50,176 KB |
testcase_20 | AC | 78 ms
50,176 KB |
testcase_21 | AC | 86 ms
50,176 KB |
testcase_22 | AC | 125 ms
50,176 KB |
testcase_23 | AC | 80 ms
50,176 KB |
testcase_24 | AC | 75 ms
50,176 KB |
testcase_25 | AC | 122 ms
50,176 KB |
testcase_26 | AC | 77 ms
50,176 KB |
testcase_27 | AC | 122 ms
50,176 KB |
testcase_28 | AC | 76 ms
50,176 KB |
testcase_29 | AC | 77 ms
50,176 KB |
testcase_30 | AC | 73 ms
50,176 KB |
testcase_31 | AC | 72 ms
50,176 KB |
testcase_32 | AC | 74 ms
50,048 KB |
testcase_33 | AC | 75 ms
50,176 KB |
testcase_34 | AC | 73 ms
50,176 KB |
testcase_35 | AC | 73 ms
50,048 KB |
testcase_36 | AC | 79 ms
50,176 KB |
testcase_37 | AC | 75 ms
50,176 KB |
testcase_38 | AC | 75 ms
50,176 KB |
testcase_39 | AC | 115 ms
50,304 KB |
testcase_40 | AC | 72 ms
50,304 KB |
testcase_41 | AC | 73 ms
50,048 KB |
testcase_42 | AC | 117 ms
50,176 KB |
testcase_43 | AC | 75 ms
50,176 KB |
testcase_44 | AC | 74 ms
50,176 KB |
testcase_45 | AC | 74 ms
50,176 KB |
testcase_46 | AC | 84 ms
50,176 KB |
testcase_47 | AC | 77 ms
50,048 KB |
testcase_48 | AC | 117 ms
50,176 KB |
testcase_49 | AC | 73 ms
50,048 KB |
testcase_50 | AC | 74 ms
50,176 KB |
testcase_51 | AC | 74 ms
50,176 KB |
testcase_52 | AC | 74 ms
50,176 KB |
testcase_53 | AC | 77 ms
50,176 KB |
testcase_54 | AC | 79 ms
50,176 KB |
testcase_55 | AC | 75 ms
50,176 KB |
testcase_56 | AC | 108 ms
50,176 KB |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace atcoder; #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") using namespace std; using ll=long long; using ld=long double; using ull=unsigned long long; using i128 = __int128_t; #define vs vector<string> #define rep(i,n) for(ll i=0;i<ll(n);i++) #define rep2(i,n) for(ll i=n-1;i>=0;i--) #define rep3(i,a,b) for(ll i=a;i<=ll(b);i++) #define rep4(i,a,b) for(ll i=a;i>=ll(b);i--) #define forv(i,V) for(const auto& i:V) #define all(x) x.begin(),x.end() #define fi first #define se second #define SIZE(x) int(x.size()) constexpr ll mod=998244353; //constexpr ll mod=1000000007; #define pi 3.14159265358979323 #define INF32 2147483647 #define INF64 9223372036854775807 #define faster ios::sync_with_stdio(false);std::cin.tie(nullptr) #define pii pair<int, int> #define pll pair<ll, ll> #define pb push_back #define eb emplace_back #define mp make_pair #define rev reverse #define vi vector<int> #define vll vector<ll> #define vpi vector<pair<int,int>> #define vpll vector<pair<ll,ll>> #define vvi vector<vector<int>> #define vvll vector<vector<ll>> #define prq priority_queue #define lb lower_bound #define ub upper_bound #define popcnt __builtin_popcountll #define TLE while(true); #define RE assert(false); #define MLE vector<vector<vector<long long>>> mle_mle(400,vector<vector<long long>>(1000,vector<long long>(1000))); const string YESNO[2] = {"NO", "YES"}; const string YesNo[2] = {"No", "Yes"}; const string yesno[2] = {"no", "yes"}; #define rall(n) (n).rbegin(),(n).rend() #define INT(...) int __VA_ARGS__;scan(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;scan(__VA_ARGS__) #define STR(...) string __VA_ARGS__;scan(__VA_ARGS__) #define CHR(...) char __VA_ARGS__;scan(__VA_ARGS__) #define DBL(...) double __VA_ARGS__;scan(__VA_ARGS__) #define LD(...) ld __VA_ARGS__;scan(__VA_ARGS__) template<typename T,typename U> ostream &operator<<(ostream&os,const pair<T,U>&p){os<<p.first<<" "<<p.second;return os;} template<typename T,typename U> istream &operator>>(istream&is,pair<T,U>&p){is>>p.first>>p.second;return is;} template<typename T> ostream &operator<<(ostream&os,const vector<T>&v){for(auto it=v.begin();it!=v.end();){os<<*it<<((++it)!=v.end()?" ":"");}return os;} template<typename T> istream &operator>>(istream&is,vector<T>&v){for(T &in:v){is>>in;}return is;} void scan(){} template<class Head,class... Tail> void scan(Head&head,Tail&... tail){cin>>head;scan(tail...);} template<class T> void print(const T &t){cout<<t<<'\n';} template<class Head, class... Tail> void print(const Head &head, const Tail &... tail){cout<<head<<' ';print(tail...);} template<class... T> void fin(const T &... a){print(a...);exit(0);} ll max(int a,ll b){return max((ll)a,b);} ll max(ll a,int b){return max((ll)b,a);} ll min(int a,ll b){return min((ll)a,b);} ll min(ll a,int b){return min((ll)b,a);} //a以上b以下の個数 template<typename T> ll RangeOK(ll a,ll b,vector<T> &v){ return max(ub(all(v),b)-lb(all(v),a),0); } template <typename T> vector<T> compress(vector<T> &X) { vector<T> vals = X; sort(vals.begin(), vals.end()); vals.erase(unique(vals.begin(), vals.end()), vals.end()); for (int i = 0; i < (int)X.size(); i++) { X[i] = lower_bound(vals.begin(), vals.end(), X[i]) - vals.begin(); } return vals; } /* #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; */ const int MOD = 998244353; vector<long long> fact, fact_inv, inv; /* init_nCk :二項係数のための前処理 計算量:O(n) */ void init_nCk(int SIZE) { fact.resize(SIZE + 5); fact_inv.resize(SIZE + 5); inv.resize(SIZE + 5); fact[0] = fact[1] = 1; fact_inv[0] = fact_inv[1] = 1; inv[1] = 1; for (int i = 2; i < SIZE + 5; i++) { fact[i] = fact[i - 1] * i % MOD; inv[i] = MOD - inv[MOD % i] * (MOD / i) % MOD; fact_inv[i] = fact_inv[i - 1] * inv[i] % MOD; } } /* nCk :MODでの二項係数を求める(前処理 int_nCk が必要) 計算量:O(1) */ long long nCk(int n, int k) { if(n < k) return 0; if(n < 0 || k < 0) return 0; return fact[n] * (fact_inv[k] * fact_inv[n - k] % MOD) % MOD; } ll modpow(ll n, ll k){ ll ret = 1; while(k){ if(k&1) ret = ret*n%mod; n = n*n%mod; k >>= 1; } return ret; } ll n, m; ll f(ll a, ll b){ //print(a, b); if(abs(n)%2 != abs(a)%2) return 0; if(abs(n)%2 != abs(b)%2) return 0; ll p = (n+a)/2; ll q = (n+b)/2; //print(p, q); return nCk(n, p)*nCk(n, q)%mod; } int main(){ init_nCk(2000000); scan(n, m); ll ans = 0; for(ll i = 1; i*i <= abs(m); i++){ if(abs(m)%i == 0){ ans += f(i, m/i); ans += f(-i, -m/i); if(i != abs(m)/i){ ans += f(m/i, i); ans += f(-m/i, -i); } ans %= mod; } } if(m == 0){ ans += f(0, 0); rep3(i, 1, 2000000){ ans += f(0, i); ans %= mod; } rep3(i, 1, 2000000){ ans += f(0, -i); ans %= mod; } rep3(i, 1, 2000000){ ans += f(i, 0); ans %= mod; } rep3(i, 1, 2000000){ ans += f(-i, 0); ans %= mod; } } ll inv = 1; rep(i, n) inv = inv*4%mod; //print(ans, inv); inv = modpow(inv, mod-2); fin(ans*inv%mod); }