Submission #225045

#	Time	Username	Problem	Language	Result	Execution time	Memory
225045		NONAME	Simfonija (COCI19_simfonija)	C++17	44 / 110	55 ms	5356 KiB

simfonija

#include <bits/stdc++.h>
#include <time.h>
//#include <random>
#define sz(x) int(x.size())
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#define N 100500
#define oo ll(1e16)
#define pii pair <int, int>
#define pll pair <ll, ll>
#define ft first
#define sd second
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define el '\n'
#define elf endl
#define base ll(1e9 + 7)
#define re return
#define nins 4294967295
using namespace std;
typedef long long ll;
typedef long double ld;

//mt19937 rnd(0);

ll n, k, a[N], b[N];
vector <pair <ll, int> > v;
vector <ll> vec;
bool mk[N];

void solve() {
    cin >> n >> k;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    for (int i = 0; i < n; i++)
        cin >> b[i];

    for (int i = 0; i < n; i++)
        v.pb({a[i] - b[i], i});

    sort(v.begin(), v.end());

    int l = 0, r = n - 1;
    while (k > 0) {
        if (abs(v[l].ft) > abs(v[r].ft)) l++;
            else r--;
        k--;
    }

    for (int i = 0; i < l; i++)
        mk[v[i].sd] = 1;
    for (int i = n - 1; i > r; i--)
        mk[v[i].sd] = 1;

    for (int i = 0; i < n; i++)
        if (!mk[i])
            vec.pb(a[i] - b[i]);

    sort(vec.begin(), vec.end());

    ll ans = 0;

    for (int i = 0; i < n; i++)
        if (!mk[i])
            ans += abs(a[i] - vec[sz(vec) / 2] - b[i]);

    cout << ans;
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    #ifdef _LOCAL
        in("input.txt");

        int t = 1;
//        cin >> t;
        for (int i = 1; i <= t; i++) {
            cout << "Test #" << i << elf;

            clock_t start_time = clock();

            solve();

            cerr.precision(4); cerr << fixed;
            cerr << elf;
            cerr << "Time :: " << ld(clock() - start_time) / CLOCKS_PER_SEC << elf;

            cout << elf;
        }
    #else
        int t = 1;
//        cin >> t;

        while (t--) {
            solve();
            cout << el;
        }
    #endif
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11