#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define ff first
#define ss second
#define all(a) (a).begin(), (a).end()
template<typename T>
int len(T &a){
return a.size();
}
void solve(){
int n, k; cin >> n >> k;
vector<int> a(n);
for(auto &u : a){
cin >> u;
}
int ans = a.back() - a[0] + 1;
vector<int> dif;
for(int i = 1; i < n; i ++){
dif.push_back(a[i] - a[i - 1] - 1);
}
sort(all(dif), greater{});
//for(auto u : dif) cout << u << ' ';
for(int i = 0; i < k - 1; i ++){
ans -= dif[i];
}
cout << ans;
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
int testcases = 1;
#ifdef Tests
cin >> testcases;
#endif
while(testcases --){
solve();
if(testcases) cout << '\n';
#ifdef LOCAL
else
cout << '\n';
cout << "________________________" << endl;
#endif
}
#ifdef LOCAL
cout << "done" << endl;
#endif
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
500 KB |
Output is correct |
2 |
Correct |
0 ms |
344 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
500 KB |
Output is correct |
2 |
Correct |
0 ms |
344 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 |
504 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
500 KB |
Output is correct |
2 |
Correct |
0 ms |
344 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 |
504 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
14 ms |
2272 KB |
Output is correct |
17 |
Correct |
14 ms |
2272 KB |
Output is correct |
18 |
Correct |
15 ms |
2392 KB |
Output is correct |
19 |
Correct |
14 ms |
2272 KB |
Output is correct |
20 |
Correct |
14 ms |
2268 KB |
Output is correct |
21 |
Correct |
14 ms |
2388 KB |
Output is correct |
22 |
Correct |
17 ms |
2272 KB |
Output is correct |
23 |
Correct |
14 ms |
2272 KB |
Output is correct |
24 |
Correct |
15 ms |
2268 KB |
Output is correct |