제출 #571092

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
571092		Farhan_HY	Simfonija (COCI19_simfonija)	C++14	0 / 110	217 ms	32184 KiB

simfonija

#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 in the best player in the world
const int inf = 8e18;
const int N = 1e6 + 6;
const int M = 1e3 + 3;
const int LOG = 31;
const int mod = 1e9 + 7;
const float pi = atan(1) * 4;
int n, k, a[N], b[N];
map<int, int> cnt;
vector<int> v;

main()
{
    IOS
    cin >> n >> k;
    for(int i = 1; i <= n; i++)
        cin >> a[i];
    for(int i = 1; i <= n; i++)
        cin >> b[i];
    int neg = 0, pos = 0, negn = 0, posn = 0, zn = 0;
    int sum = 0;
    for(int i = 1; i <= n; i++)
    {
        if (a[i] < b[i])
            neg += b[i] - a[i], negn++, cnt[b[i] - a[i]]++;
        else if (a[i] > b[i])
            pos += a[i] - b[i], posn++;
        else
            zn++;
        sum += abs(a[i] - b[i]);
    }
    int x = 0, lst = sum;
    for(int i = 1; i <= 3e6; i++)
    {
        neg -= negn;
        negn -= cnt[i];
        pos += posn + zn;
        zn = cnt[i];
        if (neg + pos > lst)
            break;
        lst = neg + pos;
        x = i;
    }
    int ans = 0;
    for(int i = 1; i <= n; i++)
        a[i] += x, v.pb(abs(a[i] - b[i])), ans += abs(a[i] - b[i]);
    sort(v.begin(), v.end(), greater<int>());
    for(int i = 0; i < k; i++)
        ans -= v[i];
    cout << ans;
}
///use scanf

컴파일 시 표준 에러 (stderr) 메시지

simfonija.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | main()
      | ^~~~

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