Submission #1033565

# Submission time Handle Problem Language Result Execution time Memory
1033565 2024-07-25T04:01:07 Z vjudge1 Stove (JOI18_stove) C++
100 / 100
20 ms 2268 KB
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define fi first
#define se second
#define el cout << '\n';
using namespace std;

const int N = 1e5+5;
const int inf = 1e18;
const int LG = 31;
//const int mod = 1e9+7;
const int mod = 998244353;

int n,a[N],k;

void solve(){
	cin>>n>>k;
	for(int i=1; i<=n; i++ ) cin>>a[i];
	vector<int> v;
	for(int i=1; i<n; i++) v.pb(a[i+1]-a[i]);
	sort(v.begin(),v.end());
	reverse(v.begin(),v.end());
    if(k>=n) {
    	cout << n;
    	return;
	}
	if(k==1){
		cout << a[n]-a[1]+1;
		return;
	}
	int ans=0;
	for(int i=k-1; i<v.size(); i++) ans+=v[i];
	cout << ans+k;
}

signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);

	int t = 1;
//	cin >> t;
	while (t--) {
		solve();
		el;
	}
}

// 1 2 5 4 3 1 3 2 4 5

Compilation message

stove.cpp: In function 'void solve()':
stove.cpp:35:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for(int i=k-1; i<v.size(); i++) ans+=v[i];
      |                 ~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 14 ms 2264 KB Output is correct
17 Correct 16 ms 2268 KB Output is correct
18 Correct 14 ms 2256 KB Output is correct
19 Correct 19 ms 2196 KB Output is correct
20 Correct 14 ms 2244 KB Output is correct
21 Correct 14 ms 2268 KB Output is correct
22 Correct 13 ms 2268 KB Output is correct
23 Correct 20 ms 2268 KB Output is correct
24 Correct 15 ms 2268 KB Output is correct