제출 #1303619

#제출 시각아이디문제언어결과실행 시간메모리
1303619khbaStove (JOI18_stove)C++20
100 / 100
14 ms1484 KiB
// author: khba // road to IZhO gold #include "bits/stdc++.h" using namespace std; #ifdef khba #include "debug.h" #else #define print(...) 42 #endif int32_t main() { #ifdef khba freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif ios ::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, k; cin >> n >> k; vector <int> a(n); for (int &i : a) cin >> i; k = n - k; vector <int> d; for (int i = 1; i < n; ++i) d.emplace_back(a[i] - a[i-1]); sort(begin(d), end(d)); int64_t ans = n; for (int i = 0; i < k; ++i) ans += d[i] - 1; cout << ans; return 0; }
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