Submission #627435

#	Time	Username	Problem	Language	Result	Execution time	Memory
627435		Farhan_HY	Cipele (COCI18_cipele)	C++14	90 / 90	840 ms	8468 KiB

cipele

#include <bits/stdc++.h>
#define int long long
#define float double
#define pb push_back
#define F first
#define S second
#define T int t; cin >> t; while(t--)
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;
/// Benzema is the best player in the world
const int inf = 8e18;
const int N = 1e5 + 5;
const int M = 1e3 + 3;
const int LOG = 31;
const int mod = 1e9 + 7;
const float pi = atan(1) * 4;
int a[N], b[N], n, m;
multiset<int> st;

bool ok(int mid)
{
    st.clear();
    for(int i = 1; i <= m; i++)
        st.insert(b[i]);
    bool ret = 1;
    for(int i = 1; i <= n; i++)
    {
        int need = a[i] - mid;
        auto it = st.lower_bound(need);
        ret &= it != st.end();
        if (it != st.end())
        {
            ret &= abs(a[i] - *it) <= mid;
            st.erase(it);
        }
    }
    return ret;
}

main()
{
    IOS
    cin >> n >> m;
    for(int i = 1; i <= n; i++)
        cin >> a[i];
    for(int j = 1; j <= m; j++)
        cin >> b[j];
    if (n > m)
        swap(n, m), swap(a, b);
    sort(a, a + n + 1);
    int l = 0, r = 1e9;
    while(l < r)
    {
        int mid = (l + r) / 2;
        if (ok(mid))
            r = mid;
        else
            l = mid + 1;
    }
    cout << r;
}
///use scanf

Compilation message (stderr)

cipele.cpp:41:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   41 | main()
      | ^~~~

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