結果
問題 | No.1043 直列大学 |
ユーザー | ゆにぽけ |
提出日時 | 2023-10-15 18:29:51 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,496 bytes |
コンパイル時間 | 1,402 ms |
コンパイル使用メモリ | 126,796 KB |
実行使用メモリ | 5,632 KB |
最終ジャッジ日時 | 2024-09-16 22:04:49 |
合計ジャッジ時間 | 4,815 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 6 ms
5,376 KB |
testcase_01 | AC | 5 ms
5,376 KB |
testcase_02 | AC | 8 ms
5,376 KB |
testcase_03 | AC | 6 ms
5,376 KB |
testcase_04 | AC | 5 ms
5,504 KB |
testcase_05 | AC | 5 ms
5,632 KB |
testcase_06 | AC | 5 ms
5,504 KB |
testcase_07 | AC | 7 ms
5,376 KB |
testcase_08 | AC | 7 ms
5,504 KB |
testcase_09 | AC | 28 ms
5,376 KB |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 51 ms
5,504 KB |
testcase_13 | RE | - |
testcase_14 | WA | - |
testcase_15 | AC | 51 ms
5,504 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | WA | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | AC | 51 ms
5,376 KB |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | AC | 18 ms
5,504 KB |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | RE | - |
ソースコード
#include<iostream> #include<vector> #include<algorithm> #include<cstring> #include<cassert> #include<cmath> #include<ctime> #include<iomanip> #include<numeric> #include<stack> #include<queue> #include<map> #include<unordered_map> #include<set> #include<unordered_set> #include<bitset> #include<random> using namespace std; template<int m> struct modint { private: unsigned int value; static constexpr int mod() {return m;} public: constexpr modint(const long long x = 0) noexcept { long long y = x; if(y < 0 || y >= mod()) { y %= mod(); if(y < 0) y += mod(); } value = (unsigned int)y; } constexpr unsigned int val() noexcept {return value;} constexpr modint &operator+=(const modint &other) noexcept { value += other.value; if(value >= mod()) value -= mod(); return *this; } constexpr modint &operator-=(const modint &other) noexcept { unsigned int x = value; if(x < other.value) x += mod(); x -= other.value; value = x; return *this; } constexpr modint &operator*=(const modint &other) noexcept { unsigned long long x = value; x *= other.value; value = (unsigned int) (x % mod()); return *this; } constexpr modint &operator/=(const modint &other) noexcept { return *this *= other.inverse(); } constexpr modint inverse() const noexcept { assert(value); long long a = value,b = mod(),x = 1,y = 0; while(b) { long long q = a/b; a -= q*b; swap(a,b); x -= q*y; swap(x,y); } return modint(x); } constexpr modint power(long long N) const noexcept { assert(N >= 0); modint p = *this,ret = 1; while(N) { if(N & 1) ret *= p; p *= p; N >>= 1; } return ret; } constexpr modint operator+() {return *this;} constexpr modint operator-() {return modint() - *this;} constexpr modint &operator++(int) noexcept {return *this += 1;} constexpr modint &operator--(int) noexcept {return *this -= 1;} friend modint operator+(const modint& lhs, const modint& rhs) {return modint(lhs) += rhs;} friend modint operator-(const modint& lhs, const modint& rhs) {return modint(lhs) -= rhs;} friend modint operator*(const modint& lhs, const modint& rhs) {return modint(lhs) *= rhs;} friend modint operator/(const modint& lhs, const modint& rhs) {return modint(lhs) /= rhs;} friend ostream &operator<<(ostream &os,const modint &x) {return os << x.value;} }; //using mint = modint<998244353>; using mint = modint<1000000007>; int N,M; mint dp1[2][1 << 17],dp2[2][1 << 17]; void solve() { cin >> N >> M; int cur = 0; dp1[cur][0] = 1; for(int i = 0;i < N;i++) { int v; cin >> v; int nxt = 1-cur; for(int j = 0;j <= (int)1e5;j++) dp1[nxt][j] = 0; for(int j = 0;j <= (int)1e5;j++) { dp1[nxt][j] += dp1[cur][j]; if(j+v <= (int)1e5) dp1[nxt][j+v] += dp1[cur][j]; } swap(cur,nxt); } int cur1 = cur; cur = 0; dp2[cur][0] = 1; for(int i = 0;i < N;i++) { int r; cin >> r; int nxt = 1-cur; for(int j = 0;j <= (int)1e5;j++) dp2[nxt][j] = 0; for(int j = 0;j <= (int)1e5;j++) { dp2[nxt][j] += dp2[cur][j]; if(j+r <= (int)1e5) dp2[nxt][j+r] += dp2[cur][j]; } swap(cur,nxt); } for(int i = 1;i <= (int)1e5;i++) dp2[cur][i] += dp2[cur][i-1]; int A,B; cin >> A >> B; mint ans = 0; for(int i = 1;i <= (int)1e5;i++) { //n/d >= a n/b <= d <= n/a int l = (i+B-1)/B,r = i/A; ans += dp1[cur1][i]*(dp2[cur][r]-dp2[cur][l-1]); } cout << ans << endl; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int tt = 1; //cin >> tt; while(tt--) solve(); }