結果
問題 | No.1102 Remnants |
ユーザー | Enjapma_kyopro |
提出日時 | 2020-07-03 22:32:50 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 644 ms / 2,000 ms |
コード長 | 3,739 bytes |
コンパイル時間 | 1,741 ms |
コンパイル使用メモリ | 172,556 KB |
実行使用メモリ | 18,220 KB |
最終ジャッジ日時 | 2024-09-17 04:11:58 |
合計ジャッジ時間 | 8,659 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 3 ms
9,572 KB |
testcase_01 | AC | 4 ms
9,564 KB |
testcase_02 | AC | 549 ms
9,568 KB |
testcase_03 | AC | 530 ms
9,568 KB |
testcase_04 | AC | 4 ms
9,564 KB |
testcase_05 | AC | 76 ms
16,412 KB |
testcase_06 | AC | 16 ms
9,828 KB |
testcase_07 | AC | 644 ms
15,076 KB |
testcase_08 | AC | 5 ms
9,568 KB |
testcase_09 | AC | 7 ms
9,700 KB |
testcase_10 | AC | 362 ms
9,576 KB |
testcase_11 | AC | 158 ms
9,572 KB |
testcase_12 | AC | 262 ms
11,620 KB |
testcase_13 | AC | 8 ms
9,576 KB |
testcase_14 | AC | 46 ms
12,260 KB |
testcase_15 | AC | 35 ms
12,256 KB |
testcase_16 | AC | 88 ms
16,544 KB |
testcase_17 | AC | 82 ms
14,612 KB |
testcase_18 | AC | 86 ms
14,948 KB |
testcase_19 | AC | 32 ms
12,008 KB |
testcase_20 | AC | 194 ms
9,696 KB |
testcase_21 | AC | 495 ms
14,432 KB |
testcase_22 | AC | 581 ms
14,384 KB |
testcase_23 | AC | 471 ms
10,340 KB |
testcase_24 | AC | 346 ms
10,212 KB |
testcase_25 | AC | 320 ms
18,220 KB |
testcase_26 | AC | 34 ms
9,700 KB |
testcase_27 | AC | 426 ms
9,828 KB |
ソースコード
#include <bits/stdc++.h> #include <unistd.h> #include <sys/time.h> #include <stdlib.h> using namespace std; typedef long long ll; typedef pair<ll, ll> P; typedef pair<P, ll> T; typedef pair<long double , ll> Ps; typedef pair<ll, bool> Pb; const ll INF = 1e18; const ll fact_table = 101000000; long double Pi = 3.1415926535897932384626; priority_queue <ll> pql; priority_queue <P> pqp; priority_queue <P> bag; //big priority queue priority_queue <ll, vector<ll>, greater<ll> > pqls; priority_queue <P, vector<P>, greater<P> > pqps; //small priority queue //top pop ll dx[8] = {1, 0, -1, 0, 1, 1, -1, -1}; ll dy[8] = {0, 1, 0, -1, 1, -1, -1, 1}; char dir[] = "DRUL"; //↓,→,↑,← /* #define endl "\n" #ifdef ENJAPMA #undef endl #endif */ #define p(x) cout<<x<<endl; #define el cout<<endl; #define pe(x) cout<<x<<" "; #define ps(x) cout<<fixed<<setprecision(25)<<x<<endl; #define pu(x) cout<<(x); #define pb push_back #define lb lower_bound #define ub upper_bound #define CLEAR(a) a = decltype(a)(); #define pc(x) cout << x << ","; #define rep(i, n) for (ll i = 0; i < (n); i ++) // const ll mod = 998244353ll; const ll mod = 1000000007ll; ll mypow(ll a, ll b, ll mod) {ll x = 1; while (b) {while (!(b & 1)) {(a *= a) %= mod; b >>= 1;}(x *= a) %= mod; b--;} return x;} void YES(bool cond) { if (cond) { p("YES");} else { p("NO");} return;} void Yes(bool cond) { if (cond) { p("Yes");} else { p("No");} return;} void line() { p("--------------------"); return;} ll fact[fact_table + 5], rfact[fact_table + 5]; /* void c3_init() { fact[0] = rfact[0] = 1; for (ll i = 1; i <= fact_table; i++) { fact[i] = (fact[i - 1] * i) % mod; } rfact[fact_table] = mypow(fact[fact_table], mod - 2, mod); for (ll i = fact_table; i >= 1; i--) { rfact[i - 1] = rfact[i] * i; rfact[i - 1] %= mod; } return; } ll c3(ll n, ll r) { return (((fact[n] * rfact[r]) % mod ) * rfact[n - r]) % mod; } */ bool multicase = false; ll n, k, num, a, b, c, d, e, h, q, ans, sum; typedef vector<ll> vec; typedef vector<vector<ll>> mat; struct Timer { int64_t start; const int64_t CYCLES_PER_SEC = 2800000000; Timer() { reset(); } void reset() { start = getCycle(); } inline double get() { return (double)(getCycle() - start) / CYCLES_PER_SEC; } inline int64_t getCycle() { uint32_t low, high; __asm__ volatile ("rdtsc" : "=a" (low), "=d" (high)); return ((int64_t)low) | ((int64_t)high << 32); } }; Timer timer; ll x[500005], y[500005], z[500005]; ll fact2[500005]; ll krfact, kfact; ll calc(ll m){ ll res = fact2[m-1]; ll bunbo = kfact * fact[m - 1]; bunbo %= mod; res *= mypow(bunbo, mod - 2, mod); res %= mod; return res; } void solve() { cin >> n >> k; for(ll i=0;i<n;i++){ cin >> x[i]; } fact[0] = 1, rfact[0] = 1; for(ll i=1;i<=n+10;i++){ fact[i] = (fact[i-1] * i) % mod; } rfact[n+10] = mypow(fact[n+10], mod - 2, mod); kfact = 1ll; for(ll i=1;i<=k;i++){ kfact *= i; kfact %= mod; } krfact = mypow(kfact, mod - 2, mod); fact2[0] = kfact; for(ll i=1;i<=n+10;i++){ fact2[i] = (fact2[i-1] * (i+k)) % mod; } ll ans = 0; for(ll i=0;i<n;i++){ ll res = calc(i + 1) * calc(n - i); res %= mod; ans += res * x[i]; ans %= mod; } p(ans); return; } int main() { // init(); ios::sync_with_stdio(false); cin.tie(nullptr); ll q, testcase = 1; if (multicase) { cin >> q; } else { q = 1; } while (q--) { // pu("Case ");pu("#");pu(testcase);pu(": "); solve(); testcase++; } // solve(); return 0; }