Submission #337094

#	Time	Username	Problem	Language	Result	Execution time	Memory
337094		deadeye	Stove (JOI18_stove)	C++14	100 / 100	30 ms	3328 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define fi first
#define si second
typedef pair<int,int> pi;

#ifdef LOCAL
#define debug(...) __f(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) 69
#endif
template <typename Arg>
void __f(string name, Arg arg) {
	cerr << name << " = " << arg << endl;
}
template <typename Head, typename... Tail>
void __f(string names, Head head, Tail... tail) {
		string cur = "";
	for (auto ch: names){if(ch==','){break;}else{cur+=ch;}}
	string nxt = names.substr(cur.size()+2);
	cerr << cur << " = " << head << ", ";
	__f(nxt, tail...);
}

const int mxn = 100005;
int N, K, A[mxn], ans, idx = 1;
vector<int> d;

int32_t main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> N >> K;
	for (int i = 1; i <= N; ++i) cin >> A[i];
	for (int i = 2; i <= N; ++i) d.pb(A[i] - A[i - 1] - 1);
	sort(d.begin(), d.end(), greater<int>());
	ans = A[N] - A[1] + 1;
	for (int i = 0; i < K - 1; ++i) {
		ans -= d[i];
	}
	cout << ans;	
	return 0;
}

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