結果
問題 |
No.489 株に挑戦
|
ユーザー |
![]() |
提出日時 | 2017-02-24 23:36:09 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,181 bytes |
コンパイル時間 | 1,406 ms |
コンパイル使用メモリ | 120,176 KB |
実行使用メモリ | 23,552 KB |
最終ジャッジ日時 | 2025-01-03 00:34:52 |
合計ジャッジ時間 | 13,217 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 24 RE * 8 TLE * 3 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:115:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 115 | scanf("%d%d%d", &N, &D, &K); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:117:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 117 | scanf("%d", x + i); | ~~~~~^~~~~~~~~~~~~
ソースコード
#include <iostream> #include <string> #include <queue> #include <stack> #include <algorithm> #include <list> #include <vector> #include <complex> #include <utility> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <climits> #include <bitset> #include <ctime> #include <map> #include <unordered_map> #include <set> #include <unordered_set> #include <cassert> #include <cstddef> #include <iomanip> #include <numeric> #include <tuple> #include <sstream> #include <fstream> #include <chrono> using namespace std; #define REP(i, n) for (int (i) = 0; (i) < (n); (i)++) #define FOR(i, a, b) for (int (i) = (a); (i) < (b); (i)++) #define RREP(i, a) for(int (i) = (a) - 1; (i) >= 0; (i)--) #define FORR(i, a, b) for(int (i) = (a) - 1; (i) >= (b); (i)--) #define DEBUG(C) cerr << #C << " = " << C << endl; using LL = long long; using VI = vector<int>; using VVI = vector<VI>; using VL = vector<LL>; using VVL = vector<VL>; using VD = vector<double>; using VVD = vector<VD>; using PII = pair<int, int>; using PDD = pair<double, double>; using PLL = pair<LL, LL>; using VPII = vector<PII>; template<typename T> using VT = vector<T>; #define ALL(a) begin((a)), end((a)) #define RALL(a) rbegin((a)), rend((a)) #define SORT(a) sort(ALL((a))) #define RSORT(a) sort(RALL((a))) #define REVERSE(a) reverse(ALL((a))) #define MP make_pair #define FORE(a, b) for (auto &&a : (b)) #define FIND(s, e) ((s).find(e) != (s).end()) #define EB emplace_back template<typename T> inline bool chmax(T &a, T b){if (a < b){a = b;return true;}return false;} template<typename T> inline bool chmin(T &a, T b){if (a > b){a = b;return true;}return false;} const int INF = 1e9; const int MOD = INF + 7; const LL LLINF = 1e18; template<typename type = int, typename ctype = std::less<type>, type LIM = (std::is_same<ctype, std::less<type>>::value ? std::numeric_limits<type>::max() : std::numeric_limits<type>::min())> class SegTreeRMQ { //デフォでminimum private: const int n; std::vector<type> st; ctype comp; type query(int l, int r, int k, int L, int R) { if (R <= l || r <= L) return LIM; if (l <= L && R <= r) return st[k]; type res = LIM; int h = (L + R) >> 1; if (l < h) res = std::min(res, query(l, r, (k << 1) + 1, L, h), comp); if (h < r) res = std::min(res, query(l, r, (k << 1) + 2, h, R), comp); return res; } void update(int id, type el, int k, int L, int R) { if (id < L || R <= id) return; if (L + 1 == R && id == L) { st[k] = el; return; } int h = (L + R) >> 1; update(id, el, (k << 1) + 1, L, h); update(id, el, (k << 1) + 2, h, R); st[k] = std::min(st[(k << 1) + 2], st[(k << 1) + 1], comp); } public: SegTreeRMQ() : n(-1) {} SegTreeRMQ(int _n, type initval = LIM) : n(_n), st(_n << 2, initval){} //範囲 [l, r) !!!!! type query(int l, int r) { assert(this->n != -1 && 0 <= l && r <= this->n && l <= r); return query(l, r, 0, 0, n); } void update(int id, type el) { assert(this->n != -1 && id < this->n); update(id, el, 0, 0, n); } }; const int MAX = 1e5 + 10; int N, D, K; int x[MAX]; SegTreeRMQ<int, greater<int>> seg(MAX); map<int, VI> mp; int main(void) { scanf("%d%d%d", &N, &D, &K); REP(i, N) { scanf("%d", x + i); mp[x[i]].EB(i); seg.update(i, x[i]); } LL ma = 0; int buy = -1, sell = -1; int j = 0; REP(i, N) { const int que = seg.query(i, i + D + 1); if (chmax<LL>(ma, que - x[i])) { VI vec = mp[que]; int high = vec.size(), low = 0; while (high - low > 0) { const int mid = (high + low - 1) / 2; if (i <= vec[mid] && vec[mid] <= i + D + 1) { high = mid; } else if (i > vec[mid]) { low = mid; } else { high = mid; } } buy = i; sell = vec[low]; } } if (ma) cout << ma * K << '\n' << buy << " " << sell << endl; else cout << 0 << endl; }