Submission #97773

#	Time	Username	Problem	Language	Result	Execution time	Memory
97773		Anai	Stove (JOI18_stove)	C++14	100 / 100	35 ms	2152 KiB

stove

#include <bits/stdc++.h>
using namespace std;

vector<int> difs, v;
int ant, n, k;

int main() {
#ifdef HOME
	freopen("joi_stove.in", "r", stdin);
	freopen("joi_stove.out", "w", stdout);
#endif
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);

	cin >> n >> k;
	v.resize(n);
	for (auto &i: v)
		cin >> i;

	difs.reserve(n - 1);
	sort(begin(v), end(v));
	for (int i = 1; i < n; ++i)
		difs.push_back(v[i] - v[i - 1] - 1);

	ant = n;
	sort(begin(difs), end(difs));
	for (int i = 0; i < n - k; ++i)
		ant+= difs[i];

	cout << ant << '\n';

	return 0; }

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50