結果
問題 | No.1286 Stone Skipping |
ユーザー | satashun |
提出日時 | 2020-11-13 21:28:20 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 2,176 bytes |
コンパイル時間 | 2,007 ms |
コンパイル使用メモリ | 192,208 KB |
最終ジャッジ日時 | 2025-01-15 22:34:13 |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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
6,824 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 3 ms
6,820 KB |
testcase_07 | AC | 2 ms
6,820 KB |
testcase_08 | AC | 2 ms
6,820 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 2 ms
6,816 KB |
testcase_11 | AC | 2 ms
6,816 KB |
testcase_12 | AC | 2 ms
6,820 KB |
testcase_13 | AC | 2 ms
6,816 KB |
testcase_14 | AC | 2 ms
6,820 KB |
testcase_15 | AC | 2 ms
6,820 KB |
testcase_16 | AC | 2 ms
6,820 KB |
testcase_17 | AC | 2 ms
6,820 KB |
testcase_18 | AC | 2 ms
6,816 KB |
testcase_19 | AC | 3 ms
6,820 KB |
testcase_20 | AC | 2 ms
6,820 KB |
testcase_21 | AC | 2 ms
6,820 KB |
testcase_22 | AC | 2 ms
6,816 KB |
testcase_23 | AC | 2 ms
6,820 KB |
testcase_24 | AC | 2 ms
6,820 KB |
testcase_25 | AC | 2 ms
6,820 KB |
testcase_26 | AC | 1 ms
6,820 KB |
testcase_27 | AC | 2 ms
6,820 KB |
testcase_28 | AC | 2 ms
6,820 KB |
コンパイルメッセージ
In file included from /usr/include/c++/13/istream:41, from /usr/include/c++/13/sstream:40, from /usr/include/c++/13/complex:45, from /usr/include/c++/13/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:127, from main.cpp:1: In member function ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>]’, inlined from ‘int main()’ at main.cpp:100:13: /usr/include/c++/13/ostream:204:25: warning: ‘ans’ may be used uninitialized [-Wmaybe-uninitialized] 204 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function ‘int main()’: main.cpp:73:8: note: ‘ans’ was declared here 73 | ll ans; | ^~~
ソースコード
#include <bits/stdc++.h>using namespace std;using ll = long long;using pii = pair<int, int>;template <class T>using V = vector<T>;template <class T>using VV = V<V<T>>;#define pb push_back#define eb emplace_back#define mp make_pair#define fi first#define se second#define rep(i, n) rep2(i, 0, n)#define rep2(i, m, n) for (int i = m; i < (n); i++)#define per(i, b) per2(i, 0, b)#define per2(i, a, b) for (int i = int(b) - 1; i >= int(a); i--)#define ALL(c) (c).begin(), (c).end()#define SZ(x) ((int)(x).size())constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }template <class T, class U>void chmin(T &t, const U &u) {if (t > u) t = u;}template <class T, class U>void chmax(T &t, const U &u) {if (t < u) t = u;}template <class T, class U>ostream &operator<<(ostream &os, const pair<T, U> &p) {os << "(" << p.first << "," << p.second << ")";return os;}template <class T>ostream &operator<<(ostream &os, const vector<T> &v) {os << "{";rep(i, v.size()) {if (i) os << ",";os << v[i];}os << "}";return os;}#ifdef LOCALvoid debug_out() { cerr << endl; }template <typename Head, typename... Tail>void debug_out(Head H, Tail... T) {cerr << " " << H;debug_out(T...);}#define debug(...) \cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl#else#define debug(...) (void(0))#define dump(x) (void(0))#endifusing R = __int128_t;const ll INF = TEN(18) + 10;int main() {ll D;cin >> D;ll ans;auto calc = [&](ll x, int t) {R s = 0;R cur = x;rep(j, t) {s += cur;cur /= 2;}return s;};rep(i, 60) {ll lo = 0, hi = INF;while (hi - lo > 1) {ll m = (lo + hi) / 2;R s = calc(m, i + 1);if (s <= D) {lo = m;} else {hi = m;}}if (calc(lo, i + 1) == D) {ans = lo;}}cout << ans << endl;return 0;}