#722665 (C++17) No.1761 Sequence Distance

提出ソース

結果

問題	No.1761 Sequence Distance
ユーザー	snuke
提出日時	2021-12-07 09:26:32
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	1,718 ms / 8,000 ms
コード長	5,180 bytes
コンパイル時間	2,417 ms
コンパイル使用メモリ	212,792 KB
実行使用メモリ	6,948 KB
最終ジャッジ日時	2024-07-07 10:21:33
合計ジャッジ時間	17,859 ms
ジャッジサーバーID （参考情報）	judge2 / judge3

このコードへのチャレンジ
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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 6,812 KB
testcase_01	AC	2 ms 6,944 KB
testcase_02	AC	423 ms 6,944 KB
testcase_03	AC	2 ms 6,940 KB
testcase_04	AC	1 ms 6,944 KB
testcase_05	AC	2 ms 6,940 KB
testcase_06	AC	4 ms 6,944 KB
testcase_07	AC	1 ms 6,940 KB
testcase_08	AC	3 ms 6,944 KB
testcase_09	AC	2 ms 6,944 KB
testcase_10	AC	5 ms 6,940 KB
testcase_11	AC	6 ms 6,944 KB
testcase_12	AC	3 ms 6,944 KB
testcase_13	AC	2 ms 6,944 KB
testcase_14	AC	2 ms 6,940 KB
testcase_15	AC	4 ms 6,940 KB
testcase_16	AC	4 ms 6,944 KB
testcase_17	AC	1 ms 6,948 KB
testcase_18	AC	6 ms 6,940 KB
testcase_19	AC	3 ms 6,944 KB
testcase_20	AC	3 ms 6,944 KB
testcase_21	AC	300 ms 6,940 KB
testcase_22	AC	19 ms 6,944 KB
testcase_23	AC	1,330 ms 6,940 KB
testcase_24	AC	386 ms 6,940 KB
testcase_25	AC	1,068 ms 6,944 KB
testcase_26	AC	1,183 ms 6,944 KB
testcase_27	AC	384 ms 6,944 KB
testcase_28	AC	319 ms 6,940 KB
testcase_29	AC	947 ms 6,940 KB
testcase_30	AC	168 ms 6,940 KB
testcase_31	AC	501 ms 6,940 KB
testcase_32	AC	29 ms 6,944 KB
testcase_33	AC	640 ms 6,940 KB
testcase_34	AC	5 ms 6,944 KB
testcase_35	AC	53 ms 6,940 KB
testcase_36	AC	841 ms 6,944 KB
testcase_37	AC	92 ms 6,944 KB
testcase_38	AC	176 ms 6,944 KB
testcase_39	AC	464 ms 6,940 KB
testcase_40	AC	147 ms 6,940 KB
testcase_41	AC	1,458 ms 6,940 KB
testcase_42	AC	1,718 ms 6,940 KB
testcase_43	AC	1,698 ms 6,940 KB
testcase_44	AC	2 ms 6,940 KB

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ソースコード

raw source code

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define rrep(i,n) for(int i = 1; i <= (n); ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
#define srep(i,s,t) for (int i = s; i < (t); ++i)
#define rng(a) a.begin(),a.end()
#define rrng(a) a.rbegin(),a.rend()
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define sz(x) (int)(x).size()
#define pcnt __builtin_popcountll
#define snuke srand((unsigned)clock()+(unsigned)time(NULL));
#define newline puts("")
using namespace std;
template<typename T> using vc = vector<T>;
template<typename T> using vv = vc<vc<T>>;
template<typename T> using PQ = priority_queue<T,vc<T>,greater<T>>;
using uint = unsigned; using ull = unsigned long long;
using vi = vc<int>; using vvi = vv<int>;
using ll = long long; using vl = vc<ll>; using vvl = vv<ll>;
using P = pair<int,int>; using vp = vc<P>;
int getInt(){int x;scanf("%d",&x);return x;}
vi pm(int n, int s=0) { vi a(n); iota(rng(a),s); return a;}
template<typename T>istream& operator>>(istream&i,vc<T>&v){rep(j,sz(v))i>>v[j];return i;}
template<typename T>string join(const T&v,const string& d=""){stringstream s;rep(i,sz(v))(i?s<<d:s)<<v[i];return s.str();}
template<typename T>ostream& operator<<(ostream&o,const vc<T>&v){if(sz(v))o<<join(v," ");return o;}
template<typename T1,typename T2>istream& operator>>(istream&i,pair<T1,T2>&v){return i>>v.fi>>v.se;}
template<typename T1,typename T2>ostream& operator<<(ostream&o,const pair<T1,T2>&v){return o<<v.fi<<","<<v.se;}
template<typename T1,typename T2>bool mins(T1& x,const T2&y){if(x>y){x=y;return true;}else return false;}
template<typename T1,typename T2>bool maxs(T1& x,const T2&y){if(x<y){x=y;return true;}else return false;}
template<typename Tx, typename Ty>Tx dup(Tx x, Ty y){return (x+y-1)/y;}
template<typename T>ll suma(const vc<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;}
template<typename T>ll suma(const vv<T>&a){ll res(0);for(auto&&x:a)res+=suma(x);return res;}
template<typename T>void uni(T& a){sort(rng(a));a.erase(unique(rng(a)),a.end());}
const double eps = 1e-10;
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
#define dame { puts("-1"); return;}
#define yes { puts("Yes"); return;}
#define no { puts("No"); return;}
#define yn {puts("Yes");}else{puts("No");}
const int MX = 200005;

// Mod int
const uint mod = 998244353;
struct mint {
  uint x;
  mint(): x(0) {}
  mint(ll x):x((x%mod+mod)%mod) {}
  mint operator-() const { return mint(0) - *this;}
  mint operator~() const { return mint(1) / *this;}
  mint& operator+=(const mint& a) { if((x+=a.x)>=mod) x-=mod; return *this;}
  mint& operator-=(const mint& a) { if((x+=mod-a.x)>=mod) x-=mod; return *this;}
  mint& operator*=(const mint& a) { x=(ull)x*a.x%mod; return *this;}
  mint& operator/=(const mint& a) { x=(ull)x*a.pow(mod-2).x%mod; return *this;}
  mint operator+(const mint& a) const { return mint(*this) += a;}
  mint operator-(const mint& a) const { return mint(*this) -= a;}
  mint operator*(const mint& a) const { return mint(*this) *= a;}
  mint operator/(const mint& a) const { return mint(*this) /= a;}
  mint pow(ll t) const {
    if(!t) return 1;
    mint res = pow(t/2);
    res *= res;
    return (t&1)?res*x:res;
  }
  bool operator<(const mint& a) const { return x < a.x;}
  bool operator==(const mint& a) const { return x == a.x;}
  bool operator!=(const mint& a) const { return x != a.x;}
};
mint ex(mint x, ll t) { return x.pow(t);}
istream& operator>>(istream&i,mint&a) {i>>a.x;return i;}
//*
ostream& operator<<(ostream&o,const mint&a) {o<<a.x;return o;}
/*/
ostream& operator<<(ostream&o, const mint&x) {
  int a = x.x, b = 1;
  rep(s,2)rrep(i,1000) {
    int y = ((s?-x:x)*i).x;
    if (abs(a)+b > y+i) a = s?-y:y, b = i;
  }
  o<<a; if (b != 1) o<<'/'<<b; return o;
}//*/
using vm = vector<mint>;
using vvm = vector<vm>;
struct modinv {
  int n; vm d;
  modinv(): n(2), d({0,1}) {}
  mint operator()(int i) { while (n <= i) d.pb(-d[mod%n]*(mod/n)), ++n; return d[i];}
  mint operator[](int i) const { return d[i];}
} invs;
struct modfact {
  int n; vm d;
  modfact(): n(2), d({1,1}) {}
  mint operator()(int i) { while (n <= i) d.pb(d.back()*n), ++n; return d[i];}
  mint operator[](int i) const { return d[i];}
} facs;
struct modfactinv {
  int n; vm d;
  modfactinv(): n(2), d({1,1}) {}
  mint operator()(int i) { while (n <= i) d.pb(d.back()*invs(n)), ++n; return d[i];}
  mint operator[](int i) const { return d[i];}
} ifacs;
mint comb(int a, int b) {
  if (a < b || b < 0) return 0;
  return facs(a)*ifacs(b)*ifacs(a-b);
}
//

struct Solver {
  void solve() {
    int n,m;
    scanf("%d%d",&n,&m);
    int mx = 0;
    while (mx*mx <= m) ++mx;
    vvm dp(m+1,vm(mx));
    dp[0][0] = 1;
    rep(ii,n) {
      vvm p(m+1,vm(mx)); swap(dp,p);
      rep(i,m+1)rep(j,mx) {
        int ni = i+j;
        if (ni > m) break;
        if (j) dp[ni][j-1] += p[i][j];
        else dp[ni][1] += p[i][j];
        dp[ni][j] += p[i][j]*2;
        if (j+1 < mx) dp[ni][j+1] += p[i][j];
      }
    }
    cout<<dp[m][0]<<endl;
  }
};

int main() {
  int ts = 1;
  // scanf("%d",&ts);
  rrep(ti,ts) {
    Solver solver;
    solver.solve();
  }
  return 0;
}

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結果

テストケース

ソースコード