結果
| 問題 | No.1767 BLUE to RED | 
| コンテスト | |
| ユーザー |  gazelle | 
| 提出日時 | 2021-11-26 22:56:05 | 
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 87 ms / 2,000 ms | 
| コード長 | 1,504 bytes | 
| コンパイル時間 | 1,988 ms | 
| コンパイル使用メモリ | 195,072 KB | 
| 最終ジャッジ日時 | 2025-01-26 01:41:46 | 
| ジャッジサーバーID (参考情報) | judge4 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 3 | 
| other | AC * 21 | 
ソースコード
#include <bits/stdc++.h>
#define FOR(i, n, m) for(long long i = (n); i < (long long)(m); i++)
#define REP(i, n) FOR(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define pb push_back
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<ll, ll>;
constexpr ll inf = 1000000000;
constexpr ll mod = 998244353;
constexpr ld eps = 1e-6;
template <typename T1, typename T2>
ostream &operator<<(ostream &os, pair<T1, T2> p) {
    os << to_string(p.first) << " " << to_string(p.second);
    return os;
}
template <typename T> ostream &operator<<(ostream &os, vector<T> &v) {
    REP(i, v.size()) {
        if(i)
            os << " ";
        os << v[i];
    }
    return os;
}
int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n, m;
    cin >> n >> m;
    vector<ll> a(n + 2), b(m);
    a[0] = -inf * inf;
    a[n + 1] = inf * inf;
    REP(i, n) cin >> a[1 + i];
    REP(i, m) cin >> b[i];
    n += 2;
    ll ans = 0;
    REP(i, n - 1) {
        // cout << i << endl;
        ll diff = a[i + 1] - a[i] - 1;
        auto iter = lower_bound(ALL(b), a[i]);
        ll max_jump = 0, prev = a[i];
        while(iter != b.end() && *iter < a[i + 1]) {
            max_jump = max(max_jump, *iter - prev - 1);
            prev = *iter;
            iter += 1;
        }
        max_jump = max(max_jump, a[i + 1] - prev - 1);
        // cout << i << " " << diff << " " << max_jump << endl;
        ans += diff - max_jump;
    }
    cout << ans << endl;
    return 0;
}
            
            
            
        