#636511 (C++14) No.1450 nahco314's First Problem

• 問題: No.1450 nahco314's First Problem
• ユーザー: souma987
• 提出日時: 2021-03-31 14:52:39
• 言語: C++14 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 3 ms / 2,000 ms
• コード長: 2,830 bytes
• コンパイル時間: 1,748 ms
• コンパイル使用メモリ: 166,556 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-08 14:15:33
• 合計ジャッジ時間: 3,216 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

ファイルパターン	結果
sample	AC * 3
other	AC * 37

ソースコード

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// Created at 2021/03/31 14:00
// {TODO}WA, {TODO}min, {TODO}diff
// goal: {TODO}min
#include <bits/stdc++.h>
//#include <atcoder/all>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define overload4(_1,_2,_3,_4,name,...) name
#define rep(i, n) for (lint i = 0, i##_lim = n; i < i##_lim; i++)
#define rep2(i, n) for (lint i = 1, i##_lim = n; i <= i##_lim; i++)
#define rep3(i, s, e) for (lint i = s, i##_lim = e; i < i##_lim; i++)
#define all(i) (i).begin(), (i).end()
#define print1(s) cout << (s) << '\n';
#define print2(s1, s2) cout << (s1) << ' ' << (s2) << '\n';
#define print3(s1, s2, s3) cout << (s1) << ' ' << (s2) << ' ' << (s3) << '\n';
#define print4(s1, s2, s3, s4) cout << (s1) << ' ' << (s2) << ' ' << (s3) << ' ' << (s4) << '\n';
#define print(...) overload4(__VA_ARGS__, print4, print3, print2, print1)(__VA_ARGS__)
using namespace std;
//using namespace atcoder;
using lint = long long;
using ld = long double;
using pi = pair<int, int>;
using pl = pair<lint, lint>;
using vi = vector<int>;
using vl = vector<lint>;
using vvi = vector<vi>;
using vvl = vector<vl>;
using vpi = vector<pi>;
using vpl = vector<pl>;
using qi = queue<int>;
using ql = queue<lint>;
using qpi = queue<pi>;
constexpr int INF = 1 << 30;
constexpr lint INFl = 1LL << 62;
template<class T, class U>
istream &operator>>(istream &is, pair<T, U> &pair) {
    is >> pair.first >> pair.second;
    return is;
}
template<class T, class U>
ostream &operator<<(ostream &os, pair <T, U> &pair) {
    os << pair.first << ' ' << pair.second;
    return os;
}
template<class T>
istream &operator>>(istream &is, vector<T> &vec) {
    for (auto &v : vec) is >> v;
    return is;
}
template<class T>
ostream &operator<<(ostream &os, const vector<T> &vec) {
    os << '[';
    for (auto v : vec) os << v << ", ";
    os << ']';
    return os;
}
template<class T>
inline bool chmax(T &a, T b) {
    if (b > a) {
        a = b;
        return true;
    }
    return false;
}
template<class T>
inline bool chmin(T &a, T b) {
    if (b < a) {
        a = b;
        return true;
    }
    return false;
}
int popcount(lint x) {
    int rtn = 0;
    while (x) {
        if (x & 1) rtn++;
        x >>= 1;
    }
    return rtn;
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
//    cout << fixed << setprecision(15);
    // 二分探索
    // 全探索
    // 動的計画法
    // 逆からたどる
    // ネットワークフロー
    // 二部マッチング
    // ggrks
    /*----------------------------------------------------*/
    lint x; cin >> x;
    rep(weight, 60) {
        lint n = x ^ weight;
        if (popcount(n) == weight && n >= 1 && n <= 2000000000000000000LL) {
            print(n)
            return 0;
        }
    }
    print(-1)
    // 最大値は?
}
 
 
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