제출 #1299839

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1299839		the_commando_x	Cipele (COCI18_cipele)	C++17	54 / 90	33 ms	1856 KiB

cipele

// #pragma GCC optimize("O3")
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;

using pii = pair<int, int>;
using vii = vector<pii>;
using vvii = vector<vii>;

using l = long long;
using vl = vector<l>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;

using pll = pair<l, l>;
using vll = vector<pll>;
using vvll = vector<vll>;

using d = double;
using vd = vector<d>;
using vvd = vector<vd>;
using vvvd = vector<vvd>;

using ld = long double;
using vld = vector<ld>;
using vvld = vector<vld>;
using vvvld = vector<vvld>;

using vb = vector<bool>;
using vvb = vector<vb>;
using pbb = pair<bool, bool>;
using vbb = vector<pbb>;

#define ff first
#define ss second

#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) (int)(x).size()

void setIO(string name = "")
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if (!name.empty())
    {
        (void)freopen((name + ".in").c_str(), "r", stdin);
        (void)freopen((name + ".out").c_str(), "w", stdout);
    }
}

const ld pi = 3.14159265358979323846;

const l LINF = 1e18;
const l INF = 1e9;

const l MOD = 1e9 + 7;
// const l MOD = 998244353;

const l MAXN = 2e5 + 5;

l n = 1e5 + 1, m = 1e5 + 1;
vl a, b;

bool check(l u)
{
    int i = 0, j = 0;

    while (i < n)
    {
        if (j > m)
            return 0;

        while (j < m)
            if (abs(a[i] - b[j++]) > u)
                ;
            else
                break;

        if (abs(a[i] - b[j - 1]) > u)
            return false;
        ++i;
    }

    return true;
}

void solve()
{
    cin >> n >> m;

    a.resize(n), b.resize(m);

    for (int i = 0; i < n; ++i)
        cin >> a[i];

    for (int i = 0; i < m; ++i)
        cin >> b[i];

    sort(all(a)), sort(all(b));

    if (n > m)
        swap(a, b), swap(n, m);

    l lo = 0, hi = 1e9, ans = 0;
    while (lo <= hi)
    {
        l mid = (lo + hi) / 2;

        if (check(mid))
            hi = mid - 1, ans = mid;
        else
            lo = mid + 1;
    }

    cout << ans;
}

int main()
{
    setIO("");

#ifndef ONLINE_JUDGE
    // setIO("filename");
#endif

    int t = 1;
    // cin >> t;
    while (t--)
        solve();

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

cipele.cpp: In function 'void setIO(std::string)':
cipele.cpp:53:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |         (void)freopen((name + ".in").c_str(), "r", stdin);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cipele.cpp:54:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |         (void)freopen((name + ".out").c_str(), "w", stdout);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 0 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 0 / 9
• Subtask 10: 0 / 9