제출 #1196654

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1196654		andrejikus	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1424 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) { cerr << to_string(h); if(sizeof...(t)) cerr << ", "; DBG(t...); }
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)

const int N = 1e5 + 3;
int t[N];

void solve() {
    int n, k; cin >> n >> k;
    vector<int> dif;
    for (int i = 1; i <= n; i++) {
        cin >> t[i];
        if (i == 1) continue;
        dif.push_back(t[i]-1-t[i-1]);
    }
    sort(dif.begin(), dif.end(), greater<>());
    int ans = t[n]+1-t[1];
    for (int i = 0; i < k-1; i++) ans -= dif[i];

    cout << ans << "\n";
}

signed main() {
    ios::sync_with_stdio(false); cin.tie(0);
	int t=1; //cin >> t;
	while (t--) {
        solve();
	}
}

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