제출 #952771

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
952771		Spade1	Stove (JOI18_stove)	C++14	100 / 100	17 ms	2216 KiB

stove

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

typedef long long ll;
typedef double db;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ld> vld;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<pld> vpld;
typedef vector<vi> vvi;

template<typename T> using pq = priority_queue<T>;
template<typename T> using pqg = priority_queue<T, vector<T>, greater<T>>;

#define rep0(a) for (int i = 0; i < a; ++i)
#define rep1(i, a) for (int i = 0; i < a; ++i)
#define rep2(i, a, b) for (int i = a; i <= b; ++i)
#define rep3(i, a, b, c) for (int i = a; i <= b; i+=c) 
#define overload4(a, b, c, d, e, ...) e
#define rep(...) overload4(__VA_ARGS__, rep3, rep2, rep1, rep0)(__VA_ARGS__)
#define repd0(a) for (int i = a; i >= 1; --i)
#define repd1(i, a) for (int i = a; i >= 1; --i)
#define repd2(i, a, b) for (int i = b; i >= a; --i)
#define repd3(i, a, b, c) for (int i = b; i >= a; i-=c)
#define repd(...) overload4(__VA_ARGS__, repd3, repd2, repd1, repd0)(__VA_ARGS__)
#define trav(a, x) for (auto& a : x)

#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define st first
#define nd second
#define lb lower_bound
#define ub upper_bound
#define all(x) (x).begin(), (x).end()
#define ins insert

template<typename T> bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MOD = 1e9 + 7;
const int INF = 0x3fffffff;
const ll LINF = 0x1fffffffffffffff;
const char nl = '\n';
const int MX = 1e5 + 3;

void solve() {
  int n, k; cin >> n >> k;
  vi v(n); trav(i, v) cin >> i;
  vi dif(n-1);
  int sum = v.back()-v[0]+1;
  rep(i, 1, n-1) {dif[i-1] = v[i]-v[i-1]-1;}
  sort(all(dif), greater<int>());
  rep(i, 0, k-2) sum -= dif[i];
  cout << sum << nl;
}

int main(int argc, char* argv[]) {
  ios_base::sync_with_stdio(0); cin.tie(NULL);
  int t = 1;
  // cin >> t;
  while (t--) { solve(); }
  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

stove.cpp:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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