結果
| 問題 | No.4 おもりと天秤 |
| コンテスト | |
| ユーザー |
stone_725
|
| 提出日時 | 2017-10-17 12:13:22 |
| 言語 | C++11 (gcc 15.2.0 + boost 1.89.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 510 bytes |
| 記録 | |
| コンパイル時間 | 898 ms |
| コンパイル使用メモリ | 174,756 KB |
| 実行使用メモリ | 6,400 KB |
| 最終ジャッジ日時 | 2026-05-12 15:35:17 |
| 合計ジャッジ時間 | 1,847 ms |
|
ジャッジサーバーID (参考情報) |
judge1_1 / judge3_0 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 23 |
コンパイルメッセージ
main.cpp: In function 'int main()':
main.cpp:36:10: warning: ignoring return value of 'std::basic_ostream<_CharT, _Traits>* std::basic_ios<_CharT, _Traits>::tie() const [with _CharT = char; _Traits = std::char_traits<char>]', declared with attribute 'nodiscard' [-Wunused-result]
36 | cin.tie();
| ~~~~~~~^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/ios:48,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/istream:42,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/sstream:42,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/complex:50,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/ccomplex:43,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/x86_64-pc-linux-gnu/bits/stdc++.h:133,
from main.cpp:1:
/home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/basic_ios.h:310:7: note: declared here
310 | tie() const
| ^~~
ソースコード
#include "bits/stdc++.h"
using namespace std;
int n;
bool check[10000];
int dfs(int now)
{
if (now == n) {
return 1;
}
if(now < 1 || n < now || check[now]) {
return n + 1;
}
check[now] = true;
int cnt = 0, c = now;
while (c) {
cnt++;
c &= c - 1;
}
return min(dfs(now + cnt), dfs(now - cnt)) + 1;
}
static void solve()
{
cin >> n;
int ans = dfs(1);
if (n < ans) ans = -1;
cout << ans << "\n";
}
int main()
{
ios::sync_with_stdio(false);
cin.tie();
solve();
}
stone_725