Submission #701035

#	Time	Username	Problem	Language	Result	Execution time	Memory
701035		mychecksedad	Stove (JOI18_stove)	C++17	100 / 100	28 ms	2076 KiB

stove

/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define all(x) x.begin(), x.end()
const int N = 1e6+100, M = 1e5+10, K = 20;


int n, k, t[N], a[N];
void solve(){
  cin >> n >> k;
  for(int i = 0; i < n; ++i) cin >> t[i];
  sort(t, t + n);
  for(int i = 0; i < n - 1; ++i) a[i] = t[i + 1] - t[i];
  sort(a, a + n - 1, greater<int>());
  int ans = t[n - 1] - t[0] + 1;
  for(int i = 0; i < k - 1; ++i){
    ans -= a[i] - 1;
  }
  cout << ans;
}


int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int T = 1, aa;
  // cin >> T;aa=T;
  while(T--){
    // cout << "Case #" << aa-T << ": ";
    solve();
    cout << '\n';
  }
  return 0;
 
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:30:14: warning: unused variable 'aa' [-Wunused-variable]
   30 |   int T = 1, aa;
      |              ^~

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