結果
問題 | No.2950 Max Min Product |
ユーザー | pitP |
提出日時 | 2024-10-25 23:59:08 |
言語 | C++23(gcc13) (gcc 13.2.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 913 ms / 3,000 ms |
コード長 | 3,367 bytes |
コンパイル時間 | 7,813 ms |
コンパイル使用メモリ | 338,380 KB |
実行使用メモリ | 21,088 KB |
最終ジャッジ日時 | 2024-10-25 23:59:41 |
合計ジャッジ時間 | 32,382 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 462 ms
18,984 KB |
testcase_04 | AC | 480 ms
19,432 KB |
testcase_05 | AC | 489 ms
19,152 KB |
testcase_06 | AC | 579 ms
20,952 KB |
testcase_07 | AC | 607 ms
21,084 KB |
testcase_08 | AC | 577 ms
21,080 KB |
testcase_09 | AC | 330 ms
12,132 KB |
testcase_10 | AC | 579 ms
20,032 KB |
testcase_11 | AC | 490 ms
19,404 KB |
testcase_12 | AC | 579 ms
20,952 KB |
testcase_13 | AC | 579 ms
20,864 KB |
testcase_14 | AC | 601 ms
20,960 KB |
testcase_15 | AC | 770 ms
20,552 KB |
testcase_16 | AC | 544 ms
18,812 KB |
testcase_17 | AC | 605 ms
19,240 KB |
testcase_18 | AC | 726 ms
20,956 KB |
testcase_19 | AC | 736 ms
20,956 KB |
testcase_20 | AC | 728 ms
21,088 KB |
testcase_21 | AC | 384 ms
12,704 KB |
testcase_22 | AC | 457 ms
19,288 KB |
testcase_23 | AC | 321 ms
12,312 KB |
testcase_24 | AC | 582 ms
20,960 KB |
testcase_25 | AC | 579 ms
21,084 KB |
testcase_26 | AC | 590 ms
20,952 KB |
testcase_27 | AC | 612 ms
18,232 KB |
testcase_28 | AC | 913 ms
20,588 KB |
testcase_29 | AC | 702 ms
18,696 KB |
testcase_30 | AC | 896 ms
20,128 KB |
testcase_31 | AC | 820 ms
20,620 KB |
testcase_32 | AC | 889 ms
20,224 KB |
testcase_33 | AC | 682 ms
18,152 KB |
testcase_34 | AC | 439 ms
11,460 KB |
testcase_35 | AC | 657 ms
17,976 KB |
testcase_36 | AC | 881 ms
19,908 KB |
testcase_37 | AC | 900 ms
19,700 KB |
testcase_38 | AC | 910 ms
19,924 KB |
testcase_39 | AC | 2 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } typedef long long ll; typedef vector<vector<int>> Graph; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define FOR(i,l,r) for (int i = l;i < (int)(r); i++) #define rep(i,n) for (int i = 0;i < (int)(n); i++) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define my_sort(x) sort(x.begin(), x.end()) #define my_max(x) *max_element(all(x)) #define my_min(x) *min_element(all(x)) template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const int INF = (1<<30) - 1; const ll LINF = (1LL<<40) - 1; const int MOD = 998244353; const int MOD2 = 1e9+7; const double PI = acos(-1); vector<int> di = {1,0,-1,0}; vector<int> dj = {0,1,0,-1}; #ifdef LOCAL # include <debug_print.hpp> # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif using mint = modint998244353; struct S{ mint a, b, sum; int size; }; using F = pair<mint, mint>; S op(S lhs, S rhs){ return {lhs.a + rhs.a, lhs.b + rhs.b, lhs.sum + rhs.sum, lhs.size + rhs.size}; } S e(){ return {0, 0, 0, 0}; } S mapping(F f, S x){ return {x.a + f.first * x.size, x.b + f.second * x.size, x.sum + ((x.a * f.second) + (x.b * f.first)) + x.size * f.first * f.second, x.size}; } F composition(F f, F g){ return {f.first + g.first, f.second + g.second}; } F id(){ return {0, 0}; } int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int N; cin >> N; vector<ll> A(N + 1, LINF), B(N + 1, 0); rep(i, N){ cin >> A[i]; B[i] = A[i]; } vector<S> dat(N + 1); rep(i, N + 1){ dat[i].a = A[i]; dat[i].b = B[i]; dat[i].sum = A[i] * B[i]; dat[i].size = 1; } lazy_segtree<S, op, e, F, mapping, composition, id> seg(dat); vector<int> stk_a = {N}, stk_b = {N}; mint ans = 0; for(int i = N - 1; i >= 0; i--){ while(A[stk_a.back()] < A[i]){ int l = stk_a.back(); stk_a.pop_back(); int r = stk_a.back(); seg.apply(l, r, F{A[i] - A[l], 0}); } while(B[stk_b.back()] > B[i]){ int l = stk_b.back(); stk_b.pop_back(); int r = stk_b.back(); seg.apply(l, r, F{0, B[i] - B[l]}); } ans += seg.prod(i, N).sum; // vector<mint> a(N), b(N), sum(N); // rep(j, N) { // a[j] = seg.get(j).a; // b[j] = seg.get(j).b; // sum[j] = seg.get(j).sum; // } // debug(a, b, sum); stk_a.push_back(i); stk_b.push_back(i); } cout << ans << endl; }