結果
問題 | No.1474 かさまJ |
ユーザー | fuppy_kyopro |
提出日時 | 2021-04-09 22:07:49 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 304 ms / 2,500 ms |
コード長 | 5,200 bytes |
コンパイル時間 | 2,473 ms |
コンパイル使用メモリ | 211,340 KB |
実行使用メモリ | 24,948 KB |
最終ジャッジ日時 | 2024-06-25 05:38:29 |
合計ジャッジ時間 | 5,395 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 5 ms
11,904 KB |
testcase_01 | AC | 5 ms
11,904 KB |
testcase_02 | AC | 6 ms
12,032 KB |
testcase_03 | AC | 5 ms
11,904 KB |
testcase_04 | AC | 6 ms
11,888 KB |
testcase_05 | AC | 96 ms
20,136 KB |
testcase_06 | AC | 27 ms
13,348 KB |
testcase_07 | AC | 6 ms
11,992 KB |
testcase_08 | AC | 7 ms
11,848 KB |
testcase_09 | AC | 133 ms
20,480 KB |
testcase_10 | AC | 14 ms
13,440 KB |
testcase_11 | AC | 8 ms
12,416 KB |
testcase_12 | AC | 7 ms
12,160 KB |
testcase_13 | AC | 188 ms
21,632 KB |
testcase_14 | AC | 50 ms
14,452 KB |
testcase_15 | AC | 30 ms
13,116 KB |
testcase_16 | AC | 15 ms
13,824 KB |
testcase_17 | AC | 65 ms
17,536 KB |
testcase_18 | AC | 254 ms
23,840 KB |
testcase_19 | AC | 294 ms
24,832 KB |
testcase_20 | AC | 304 ms
24,948 KB |
ソースコード
/* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> using namespace std; // using namespace atcoder; #define DEBUG(x) cerr<<#x<<": "<<x<<endl; #define DEBUG_VEC(v) cerr<<#v<<":";for(int i=0;i<v.size();i++) cerr<<" "<<v[i]; cerr<<endl; #define DEBUG_MAT(v) cerr<<#v<<endl;for(int i=0;i<v.size();i++){for(int j=0;j<v[i].size();j++) {cerr<<v[i][j]<<" ";}cerr<<endl;} typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector< vector<int> > #define vll vector< vector<ll> > #define vs vector<string> #define pii pair<int,int> #define pis pair<int,string> #define psi pair<string,int> #define pll pair<ll,ll> template<class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template<class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template<class S, class T> ostream& operator<<(ostream& os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i,n) for(int i=0;i<(int)(n);i++) #define rep1(i,n) for(int i=1;i<=(int)(n);i++) #define rrep(i,n) for(int i=(int)(n)-1;i>=0;i--) #define rrep1(i,n) for(int i=(int)(n);i>0;i--) #define REP(i,a,b) for(int i=a;i<b;i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(),c.end() void YES(bool t=true) {cout<<(t?"YES":"NO")<<endl;} void Yes(bool t=true) {cout<<(t?"Yes":"No")<<endl;} void yes(bool t=true) {cout<<(t?"yes":"no")<<endl;} void NO(bool t=true) {cout<<(t?"NO":"YES")<<endl;} void No(bool t=true) {cout<<(t?"No":"Yes")<<endl;} void no(bool t=true) {cout<<(t?"no":"yes")<<endl;} template<class T> bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; } template<class T> bool chmin(T &a, const T &b) { if (a>b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0}; // vi dx2 = { 1,1,0,-1,-1,-1,0,1 }, dy2 = { 0,1,1,1,0,-1,-1,-1 }; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; const ll MOD = 1000000007; // const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' const int MAXN = 555555; vl fact(MAXN); vl rfact(MAXN); ll mod_pow(ll x, ll p, ll M = MOD) { if (p < 0) { x = mod_pow(x, M - 2, M); p = -p; } ll a = 1; while (p) { if (p % 2) a = a*x%M; x = x*x%M; p /= 2; } return a; } ll mod_inverse(ll a, ll M = MOD) { return mod_pow(a, M - 2, M); } void set_fact(ll n, ll M = MOD) { fact[0] = 1; for (ll i = 1; i <= n; i++) { fact[i] = i * fact[i - 1] % M; } rfact[n] = mod_inverse(fact[n], M); for (ll i = n - 1; i >= 0; i--) { rfact[i] = (i + 1) * rfact[i + 1] % M; } } //http://drken1215.hatenablog.com/entry/2018/06/08/210000 //n���傫��fact���v�Z�ł��Ȃ��Ƃ��̂ق��̌v�Z���@�ɂ��ď����Ă��� ll nCr(ll n, ll r, ll M = MOD) { if (r > n) return 0; assert(fact[2] == 2); ll ret = fact[n]; if (rfact[r] == 0) { rfact[r] = mod_inverse(fact[r], M); } ret = (ret*rfact[r]) % M; if (rfact[n - r] == 0) { rfact[n - r] = mod_inverse(fact[n - r], M); } ret = (ret*rfact[n - r]) % M; return ret; } ll nHr(ll n, ll r) { return nCr(n+r-1, r); } signed main() { int n, mp, mq, l; cin >> n >> mp >> mq >> l; vi s(n); rep (i, n) cin >> s[i]; vll dp1(n + 1, vl(mq + 1)), dp2(n + 1, vl(mq + 1)); dp1[0][0] = 1; rep (i, n) { rep (j, n + 1) rep (k, mq + 1) dp2[j][k] = 0; rep (j, n + 1) { rep (k, mq + 1) { if (dp1[j][k] == 0) continue; (dp2[j][k] += dp1[j][k]) %= MOD; if (k + 1 <= mq) { (dp2[j][k + 1] -= dp1[j][k]) %= MOD; } if (k + 1 <= mq) { (dp2[j + 1][k + 1] += dp1[j][k]) %= MOD; } if (k + s[i] + 1 <= mq) { (dp2[j + 1][k + s[i] + 1] -= dp1[j][k]) %= MOD; } } } rep (j, n + 1) { rep (k, mq) { (dp2[j][k + 1] += dp2[j][k]) %= MOD; } } // DEBUG_MAT(dp2); swap(dp1, dp2); } set_fact(mp + mq + n + 10); ll ans = 0; rep (i, n + 1) rep (k, mq + 1) { ll need = l * i; need -= k; if (need > mp) continue; ll use = mp - need; ans += dp1[i][k] * nCr(use + n - 1, n - 1); ans %= MOD; } ans = (ans + MOD) % MOD; cout << ans << endl; }