Submission #925016

#	Time	Username	Problem	Language	Result	Execution time	Memory
925016		Whisper	Cipele (COCI18_cipele)	C++17	90 / 90	39 ms	3696 KiB

cipele

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using T = tuple<ll, ll, ll>;

#define int long long
#define Base 41
#define sz(a) (int)a.size()
#define FOR(i, a, b) for ( int i = a ; i <= b ; i++ )
#define FORD(i, a, b) for (int i = b; i >= a; i --)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define REPD(i, n) for (int i = n - 1; i >= 0; --i)
#define all(x) x.begin() , x.end()
#define pii pair<int , int>
#define fi first
#define se second
#define Lg(x) 31 - __builtin_clz(x)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)

constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int MAX = 1e5 + 5;
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void setupIO(){
    #define name "Whisper"
    //Phu Trong from Nguyen Tat Thanh High School for gifted student
    srand(time(NULL));
    cin.tie(nullptr)->sync_with_stdio(false); cout.tie(nullptr);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    cout << fixed << setprecision(10);
}

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
int nLeft, nRight;
vector<int> l, r;
void Whisper(){
    cin >> nLeft >> nRight;
    l.resize(nLeft); r.resize(nRight);
    for (auto&v : l) cin >> v;
    for (auto&v : r) cin >> v;
    sort(all(l)), sort(all(r));
    if (nLeft > nRight) swap(l, r), swap(nLeft, nRight);

    auto check = [&](int d){
        int cnt = 0;
        int p = 0;
        for (int i = 0; i < nLeft; ++i){
            while (abs(l[i] - r[p]) > d && p < nRight) ++p;
            if (p < nRight && abs(l[i] - r[p]) <= d){
                ++p; continue;
            }
            return 0;
        }
        return 1;
    };
    int l = 0, r = 1e9;
    while (l <= r){
        int mid = (l + r) >> 1;
        if (check(mid)) r = mid - 1;
        else l = mid + 1;
    }
    cout << r + 1;
}


signed main(){
    setupIO();
    int Test = 1;
//    cin >> Test;
    for ( int i = 1 ; i <= Test ; i++ ){
        Whisper();
        if (i < Test) cout << '\n';
    }
}

Compilation message (stderr)

cipele.cpp: In lambda function:
cipele.cpp:64:13: warning: unused variable 'cnt' [-Wunused-variable]
   64 |         int cnt = 0;
      |             ^~~

• 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