結果
| 問題 |
No.1674 Introduction to XOR
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-01-18 18:21:54 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 3 ms / 1,000 ms |
| コード長 | 752 bytes |
| コンパイル時間 | 1,924 ms |
| コンパイル使用メモリ | 190,992 KB |
| 最終ジャッジ日時 | 2025-01-27 13:02:44 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 21 |
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 ‘int32_t main()’ at main.cpp:35:13:
/usr/include/c++/13/ostream:204:25: warning: ‘ans’ may be used uninitialized [-Wmaybe-uninitialized]
204 | { return _M_insert(__n); }
| ~~~~~~~~~^~~~~
main.cpp: In function ‘int32_t main()’:
main.cpp:20:9: note: ‘ans’ was declared here
20 | int ans;
| ^~~
ソースコード
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define oo (int)(1e17)
int32_t main() {
cin.sync_with_stdio(false);
cin.tie(0); cout.tie(0);
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("out1.txt", "w", stdout);
#endif
int n;
cin >> n;
int a[n + 3];
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
int ans;
for (int i = 0; i <= 63; i++) {
int curr = (1ll << i);
int ch = 0;
for (int j = 1; j <= n; j++) {
if ((curr ^ a[j]) != (curr + a[j])) {
ch = 1;
break;
}
}
if (ch == 0) {
ans = curr;
break;
}
}
cout << ans;
}