結果
問題 | No.1084 積の積 |
ユーザー | sak |
提出日時 | 2020-07-29 13:21:47 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 47 ms / 2,000 ms |
コード長 | 1,824 bytes |
コンパイル時間 | 2,239 ms |
コンパイル使用メモリ | 205,560 KB |
実行使用メモリ | 6,784 KB |
最終ジャッジ日時 | 2024-06-28 21:35:57 |
合計ジャッジ時間 | 3,851 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 39 ms
6,656 KB |
testcase_05 | AC | 17 ms
5,376 KB |
testcase_06 | AC | 39 ms
6,784 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 37 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 19 ms
5,376 KB |
testcase_13 | AC | 40 ms
6,144 KB |
testcase_14 | AC | 15 ms
5,376 KB |
testcase_15 | AC | 13 ms
5,376 KB |
testcase_16 | AC | 47 ms
6,528 KB |
testcase_17 | AC | 18 ms
5,376 KB |
testcase_18 | AC | 31 ms
5,504 KB |
testcase_19 | AC | 40 ms
6,144 KB |
testcase_20 | AC | 11 ms
5,376 KB |
testcase_21 | AC | 16 ms
5,376 KB |
testcase_22 | AC | 13 ms
5,376 KB |
testcase_23 | AC | 25 ms
5,376 KB |
testcase_24 | AC | 22 ms
5,376 KB |
testcase_25 | AC | 39 ms
6,144 KB |
testcase_26 | AC | 29 ms
6,528 KB |
testcase_27 | AC | 28 ms
6,656 KB |
testcase_28 | AC | 27 ms
6,656 KB |
testcase_29 | AC | 28 ms
6,528 KB |
testcase_30 | AC | 28 ms
6,528 KB |
testcase_31 | AC | 27 ms
6,528 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> p_ll; template<class T> void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; } #define repr(i,from,to) for (int i=(int)from; i<(int)to; i++) #define all(vec) vec.begin(), vec.end() #define rep(i,N) repr(i,0,N) #define per(i,N) for (int i=(int)N-1; i>=0; i--) const ll MOD = pow(10,9)+7; const ll LLINF = pow(2,61)-1; const int INF = pow(2,30)-1; vector<ll> fac; void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; } ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; } ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; } ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); } ll lcm(ll a, ll b) { return a/gcd(a,b)*b; } ll p2(ll n, ll k) { ll result = 1; ll p2 = 0, now = n; while (k>=1ll<<p2) { if (k&1ll<<p2) result = result*now % MOD; p2++; now = now*now % MOD; } return result; } int main() { ll N; cin >> N; ll A[N]; rep(i,N) cin >> A[i]; bool zero = false; rep(i,N) zero |= A[i]==0; if (zero) { cout << 0 << endl; return 0; } ll count_a[N+2] = {}, r = 0, mul = 1; ll MA = pow(10,9); rep(l,N) { while (r!=N&&mul*A[r]<MA) { mul*=A[r]; r++; } count_a[l] += r-l; count_a[l+1] -= r-l+1; count_a[r+1] += 1; if (l!=r) mul/=A[l]; else r++; } ll count_v[N+1] = {}; rep(i,N+1) count_v[i] = i==0 ? count_a[i] : count_v[i-1] + count_a[i]; ll count[N] = {}; rep(i,N) count[i] = i==0 ? count_v[i] : count[i-1] + count_v[i]; // debug(count,count+N); ll result = 1; rep(i,N) result = result*p2(A[i],count[i]) % MOD; cout << result << endl; return 0; }