Problem:
Score : 300 points

Problem Statement

Fennec is fighting with N monsters.

The health of the i-th monster is H_i.

Fennec can do the following two actions:

Attack: Fennec chooses one monster. That monster's health will decrease by 1.

Special Move: Fennec chooses one monster. That monster's health will become 0.

There is no way other than Attack and Special Move to decrease the monsters' health.

Fennec wins when all the monsters' healths become 0 or below.

Find the minimum number of times Fennec needs to do Attack (not counting Special Move) before winning when she can use Special Move at most K times.

Constraints

1 \leq N \leq 2 \times 10^5

0 \leq K \leq 2 \times 10^5

1 \leq H_i \leq 10^9

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N K
H_1 ... H_N

Output

Print the minimum number of times Fennec needs to do Attack (not counting Special Move) before winning.

Sample Input 1

3 1
4 1 5

Sample Output 1

5

By using Special Move on the third monster, and doing Attack four times on the first monster and once on the second monster, Fennec can win with five Attacks.

Sample Input 2

8 9
7 9 3 2 3 8 4 6

Sample Output 2

0

She can use Special Move on all the monsters.

Sample Input 3

3 0
1000000000 1000000000 1000000000

Sample Output 3

3000000000

Watch out for overflow.

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)

#include<bits/stdc++.h>
#include<cstdio>
using namespace std;
#define MOD 1000000007
#define FormulaToConvertMicrosecondsToSeconds(duration) duration / 1e+6
#define _CRT_SECURE_NO_DEPRECATE
#define ll                    long long
#define nl                    '\n'                             // NL - sign of new line

#define upperString(str)      transform(str.begin(), str.end(), str.begin(), ::toupper); // make entire string uppercase
#define lowerString(str)      transform(str.begin(), str.end(), str.begin(), ::tolower); // make entire string lowercase

#define ps(x,y)               fixed << setprecision(y) << x     // usage: t=1.1234; cout << ps(t,4); // it means it will print 4 decimal places.

#define eb                    emplace_back
#define sortv(v)              sort(v.begin(), v.end());
#define rsortv(v)             sort(v.rbegin(), v.rend());
#define rev(v)		          reverse(v.begin(), v.end())       // reverse the vector

#define si                    set<int>

#define mii			          std::map <int,int>
#define multimii		      std::multimap <int,int>
#define mss			          map <string, string>
#define w(t)                  unsigned t; cin >> t; while(t--)
mt19937                       rng(chrono::steady_clock::now().time_since_epoch().count());

void solve();
//==================================

bool isPrime(int num) {
	if (num == 1) return false;
	for (int i = 2; i <= sqrt(num); i++) {
		if (num % i == 0) return false;
	}
	return true;
}

ll binarySearch(int a[], int l, int r, int x)
{
	while (l <= r)
	{
		int mid_index = l + (r - l) / 2;

		if (a[mid_index] == x)
			return mid_index;
		else if ( x > a[mid_index])
		{
			l = mid_index + 1;
		}
		else if ( x < a[mid_index])
		{
			r = mid_index - 1;
		}
	}
	return -1;
}

ll fast_power(ll base, ll power) {
	ll result = 1;
	while (power > 0) {

		// if( power % 2 == 1)
		if (power & 1) { // Can also use (power & 1) to make code even faster
			result = (result * base) % MOD;
		}
		base = (base * base) % MOD;

		// power /= 2
		power >>= 1; // Can also use power >>= 1; to make code even faster
	}
	return result;
}

//==================================
int32_t main()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	//--------------------------------
	auto t1 = std::chrono::high_resolution_clock::now();

	//int t = 1;
	//cin >> t;
	//while (t--)
	//{

	solve();
	//}



	auto t2 = std::chrono::high_resolution_clock::now();
	auto duration = std::chrono::duration_cast<std::chrono::microseconds>( t2 - t1 ).count();

	cerr << "\n\nTime taken : " << FormulaToConvertMicrosecondsToSeconds(duration) << " secs" << nl;
	return 0;
}

void solve() //Task A. Double Cola!!! Two teams composing !
{

	unsigned ll n, s; cin >> n >> s;
	if (s >= n) {
		cout << 0; return;
	}
	else if (s == 0)
	{
		unsigned ll ans = 0;
		while (n--)
		{
			unsigned ll e; cin >> e;
			ans += e;
		}
		cout << ans;
	}
	else
	{
		vector<unsigned ll>v(n);
		unsigned ll ans = 0;
		for (ll i = 0; i < n; ++i)
		{
			cin >> v[i];
		}

		sortv(v);

		unsigned ll sum = 0;
		for (int i = 0; i < n - s; ++i)
		{
			sum += v[i];
		}
		cout << sum;
	}

} // !solve


/* TESTS:


*/