結果
問題 | No.1489 Repeat Cumulative Sum |
ユーザー | yuto1115 |
提出日時 | 2021-04-23 21:54:14 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 5,923 bytes |
コンパイル時間 | 2,161 ms |
コンパイル使用メモリ | 203,784 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-04 07:56:26 |
合計ジャッジ時間 | 3,554 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 22 ms
5,376 KB |
testcase_04 | AC | 21 ms
5,376 KB |
testcase_05 | AC | 22 ms
5,376 KB |
testcase_06 | AC | 18 ms
5,376 KB |
testcase_07 | AC | 13 ms
5,376 KB |
testcase_08 | AC | 9 ms
5,376 KB |
testcase_09 | AC | 26 ms
5,376 KB |
testcase_10 | AC | 22 ms
5,376 KB |
testcase_11 | AC | 19 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 17 ms
5,376 KB |
testcase_14 | AC | 27 ms
5,376 KB |
testcase_15 | AC | 26 ms
5,376 KB |
testcase_16 | AC | 14 ms
5,376 KB |
testcase_17 | AC | 15 ms
5,376 KB |
testcase_18 | AC | 12 ms
5,376 KB |
testcase_19 | AC | 8 ms
5,376 KB |
testcase_20 | AC | 11 ms
5,376 KB |
testcase_21 | AC | 18 ms
5,376 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 8 ms
5,376 KB |
testcase_24 | AC | 1 ms
5,376 KB |
testcase_25 | AC | 5 ms
5,376 KB |
testcase_26 | AC | 27 ms
5,376 KB |
testcase_27 | AC | 17 ms
5,376 KB |
testcase_28 | AC | 3 ms
5,376 KB |
testcase_29 | AC | 12 ms
5,376 KB |
ソースコード
//@formatter:off #include<bits/stdc++.h> #define overload4(_1,_2,_3,_4,name,...) name #define rep1(i,n) for (ll i = 0; i < ll(n); ++i) #define rep2(i,s,n) for (ll i = ll(s); i < ll(n); ++i) #define rep3(i,s,n,d) for(ll i = ll(s); i < ll(n); i+=d) #define rep(...) overload4(__VA_ARGS__,rep3,rep2,rep1)(__VA_ARGS__) #define rrep1(i,n) for (ll i = ll(n)-1; i >= 0; i--) #define rrep2(i,n,t) for (ll i = ll(n)-1; i >= (ll)t; i--) #define rrep3(i,n,t,d) for (ll i = ll(n)-1; i >= (ll)t; i-=d) #define rrep(...) overload4(__VA_ARGS__,rrep3,rrep2,rrep1)(__VA_ARGS__) #define all(a) a.begin(),a.end() #define rall(a) a.rbegin(),a.rend() #define popcount(x) __builtin_popcountll(x) #define pb push_back #define eb emplace_back #ifdef __LOCAL #define debug(...) { cout << #__VA_ARGS__; cout << ": "; print(__VA_ARGS__); cout << flush; } #else #define debug(...) void(0) #endif #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__) using namespace std; using ll = long long; using ld = long double; using P = pair<int,int>; using LP = pair<ll,ll>; using vi = vector<int>; using vvi = vector<vector<int>>; using vl = vector<ll>; using vvl = vector<vector<ll>>; using vd = vector<double>; using vvd = vector<vector<double>>; using vs = vector<string>; using vc = vector<char>; using vvc = vector<vector<char>>; using vb = vector<bool>; using vvb = vector<vector<bool>>; using vp = vector<P>; using vvp = vector<vector<P>>; template<class S,class T> istream& operator>>(istream &is,pair<S,T> &p) { return is >> p.first >> p.second; } template<class S,class T> ostream& operator<<(ostream &os,const pair<S,T> &p) { return os<<'{'<<p.first<<","<<p.second<<'}'; } template<class T> istream& operator>>(istream &is,vector<T> &v) { for(T &t:v){is>>t;} return is; } template<class T> ostream& operator<<(ostream &os,const vector<T> &v) { os<<'[';rep(i,v.size())os<<v[i]<<(i==int(v.size()-1)?"":","); return os<<']'; } template<class T> void vecout(const vector<T> &v,char div='\n') { rep(i,v.size()) cout<<v[i]<<(i==int(v.size()-1)?'\n':div);} template<class T> bool chmin(T& a,T b) {if(a > b){a = b; return true;} return false;} template<class T> bool chmax(T& a,T b) {if(a < b){a = b; return true;} return false;} 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); } struct Init_io { Init_io() { ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); cout << boolalpha << fixed << setprecision(15); } } init_io; const string yes[] = {"no","yes"}; const string Yes[] = {"No","Yes"}; const string YES[] = {"NO","YES"}; const int inf = 1001001001; const ll linf = 1001001001001001001; //@formatter:on template<int mod> class modint { ll x; public: constexpr modint(ll x = 0) : x((x % mod + mod) % mod) {} static constexpr int get_mod() { return mod; } constexpr int val() const { return x; } constexpr modint operator-() const { return modint(-x); } constexpr modint &operator+=(const modint &a) { if ((x += a.val()) >= mod) x -= mod; return *this; } constexpr modint &operator++() { return *this += 1; } constexpr modint &operator-=(const modint &a) { if ((x += mod - a.val()) >= mod) x -= mod; return *this; } constexpr modint &operator--() { return *this -= 1; } constexpr modint &operator*=(const modint &a) { (x *= a.val()) %= mod; return *this; } constexpr modint operator+(const modint &a) const { modint res(*this); return res += a; } constexpr modint operator-(const modint &a) const { modint res(*this); return res -= a; } constexpr modint operator*(const modint &a) const { modint res(*this); return res *= a; } constexpr modint pow(ll t) const { modint res = 1, a(*this); while (t > 0) { if (t & 1) res *= a; t >>= 1; a *= a; } return res; } // for prime mod constexpr modint inv() const { return pow(mod - 2); } constexpr modint &operator/=(const modint &a) { return *this *= a.inv(); } constexpr modint operator/(const modint &a) const { modint res(*this); return res /= a; } }; using modint998244353 = modint<998244353>; using modint1000000007 = modint<1000000007>; template<int mod> istream &operator>>(istream &is, modint<mod> &a) { ll x; is >> x; a = modint<mod>(x); return is; } template<int mod> constexpr ostream &operator<<(ostream &os, const modint<mod> &a) { return os << a.val(); } template<int mod> constexpr bool operator==(const modint<mod> &a, const modint<mod> &b) { return a.val() == b.val(); } template<int mod> constexpr bool operator!=(const modint<mod> &a, const modint<mod> &b) { return a.val() != b.val(); } template<int mod> constexpr modint<mod> &operator++(modint<mod> &a) { return a += 1; } template<int mod> constexpr modint<mod> &operator--(modint<mod> &a) { return a -= 1; } using mint = modint1000000007; using vm = vector<mint>; using vvm = vector<vm>; int main() { INT(n); LL(m); mint ans = 0; vi a(n - 1); cin >> a; mint now = 1; rrep(i, n - 1) { now *= m + n - 2 - i; now /= n - 1 - i; ans += now * a[i]; } fin(ans); }