Submission #567205

#	Time	Username	Problem	Language	Result	Execution time	Memory
567205		1zaid1	Just Long Neckties (JOI20_ho_t1)	C++14	1 / 100	1083 ms	320 KiB

ho_t1

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define int long long
typedef long long ll;
const int M = 1e5 + 5, MOD = 1e9+7;
vector<int> a, b;
int check() {
    sort(b.begin(), b.end());
    sort(a.begin(), a.end());
    int ans = 0;
    for (int i = 0; i < a.size(); i++) {
        int x, y, mx = 0;
        x = 0, y = 0;
        for (int j = 0; j < i; j++) {
            if (max(max(a[i]-b[i], 0ll), max(a[j]-b[j], 0ll)) <= max(max(a[i]-b[j], 0ll), max(a[j]-b[i], 0ll))) continue;
            if (max(max(a[i]-b[i], 0ll), max(a[j]-b[j], 0ll))-max(max(a[i]-b[j], 0ll), max(a[j]-b[i], 0ll)) > mx) {
                x = i;
                y = j;
                mx = max(max(a[i]-b[i], 0ll), max(a[j]-b[j], 0ll))-max(max(a[i]-b[j], 0ll), max(a[j]-b[i], 0ll));
            }
        }

        swap(b[x], b[y]);
    }

    for (int i = 0; i < a.size(); i++) ans = max(ans, max(a[i]-b[i], 0ll));
    return ans;
}

signed main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    srand(time(0));
    
    int n;
    cin >> n;

    a = vector<int>(n+1);
    b.resize(n);
    for (int&i:a) cin >> i;
    for (int&i:b) cin >> i;

    for (int i = 0; i <= n; i++) {
        auto tmp = a;
        swap(tmp[i], tmp[n]);
        tmp.pop_back();
        swap(a, tmp);
        cout << check() << ' ';
        swap(a, tmp);
    } cout << endl;

    return 0;
}
 
/*
3
4 3 7 6
2 6 4

5
4 7 9 10 11 12
3 5 7 9 11
*/

Compilation message (stderr)

ho_t1.cpp: In function 'long long int check()':
ho_t1.cpp:12:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
ho_t1.cpp:27:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i = 0; i < a.size(); i++) ans = max(ans, max(a[i]-b[i], 0ll));
      |                     ~~^~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 0 / 8
• Subtask 3: 0 / 91