/*
:-=-
:%@@@@@@@@@=
.#@@@@@%@%@@@@@@=
-@@@@@@@@@@@@@@@@@#
.+@@@@@@@@@@@@@@@@@@@@.
#@@@@@@@@@@@@@@@@@@@@@%
.*@@@@@@@@@@@@@@@@@@@@@@@= / ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄\
.@@@@@@@@@@@@@@@@@@@@@@@@# | lftroq ♥ |
+@@@@@@@@@@@%%@@@@@@@@@@@@- \_________/
.%@@@@@@@@@@%##%@@@@@@@@@@@# //
-@@@@@@@@%%%%%%%%%@@@@@@@@@@:
-+- =@@@@@%##%#%##**+#@@@@@@@@@@-
.+++.%@@@%##%%%%%%%#**+##%%@@@@@@+
+=*%@@@#*###%%#=--+=+*##%@@@@@@%.
:*+%@@*+**##*=======+***#@@@@@@@:
=+++**%@###*=++=-==++**#@@@@@@@:
.**===*%@@@##+=**#*==***@@@@@@@@@:
:+++=+*+%%@@%#==+*%#*+=++@@@@@@@@%
.**#*+*+**+%#+=---=***+==*@@@@@@@:
:**#*+=+**@%##*%#++++--=++#@@@@@@@+-::.
=%**###**#@@%*=*%%%%%*==++++%@@@@@@#=-----.
.%@@%***###@@@%*++%%%#*===+=++++%@@@@%*=-----=.
=**##+=+##@@@@=+%+=***#%@#+**++++%@@%+=-------=:
.++===++====@@@@+--==-=#%%%%+++*++++#%+=------==+=.
-++--=++-:::::=#@#----+--*%%*+**+++++++==-----===--+=
:*+=--++-::::::--=-----==-=%==+%%***++=---=---===-=++:
:*+--+=-::::::::---:----+=-=++##***===-::::-+----=*+:
.=--:::.:::-=-::---::--------++--=====-::::--:-==++
:=::::::--::::::--=+-:--++++==++--==:::-:::----==+=
*-:::::::.....:-++++++++++++++=+=---::::===-:------
:+:--:......:-+++++++++++++++++====---:--=-=----:-:=.
:==--:::.:=+++++++++++++++++++++-::===-:-===-----=--:
.+=--:::-:=+++++==++++++++++++++=--:.:-===+-------+=-.
.+==-----::-+++-:+++=====+++++++=--=======--:----==+=.
:+===-----------:-++====+++++++++=--==--+-:------==-::
+=====-::----+-::-+====+++++++++++=---==:-===:-==-==.
:+===========+-::::-----+++++++++++*=--======-=+=-=.
.=========++=-::::::----:::-++++++*+=+======+++==.
.=========-::::::-----:::=+++++**+=+**====-:. .
*======-::::::::-:-----++++++++==++++++-
#======-:::::::::-------++++++++====+++=
=======-:::::::::----:::=+++++++=====+++
=====---:::::::::::------=++++++===+==++=
:===-:--:::::::::::-------+++++++===++=++
.===-:--:::::::::::::-----=+++++====++===.
.+=-::--::::::::::::-:-----++++++====++=+:
.=-:::--::::::::::::-------=+++++===-----+=
.=-:::--:::::::::::---------=++++==-----==+=.
.=-:::---:::::::::::---------+++===-----===++.
.=::::---:::::::-:-----------=++==-:-----===+-
.--:::---:::::::--------------=+=----==--===+-
.=::::---::::::::::-------===--==-------=--==:
.=--::--::::----:---:::::-:----:::-----======-
.=---:--:::---::::::--------------------==++++
*/
#include <bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MOD 1000000007LL
#define MOD2 998244353LL
#define endl '\n'
#define PI acos(-1)
#define INFINITE 2147483647LL
#define INFINITE2 9223372036854775807
#define llll pair<ll,ll>
#define ldld pair<ld,ld>
#define fi first
#define se second
#define sqrt sqrtl
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
using namespace std;
ll a[1000005],b[1000005];
void solve()
{
ll n,k;
cin >> n >> k;
for(int i=1;i<=n;i++) cin >> a[i];
for(int i=1;i<n;i++) b[i]=(a[i+1]-a[i]-1);
sort(b+1,b+n,greater<int>());
ll ans=a[n]-a[1]+1;
for(int i=1;i<k;i++) ans-=b[i];
cout << ans << endl;
}
int main()
{
fastIO
//freopen("hanhhhh.inp","r",stdin);
//freopen("hanhhhh.out","w",stdout);
int t=1;
//cin >> t;
while(t--)
solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
2 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2512 KB |
Output is correct |
6 |
Correct |
2 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
2 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2512 KB |
Output is correct |
6 |
Correct |
2 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
2 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2512 KB |
Output is correct |
6 |
Correct |
2 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
15 ms |
7516 KB |
Output is correct |
17 |
Correct |
15 ms |
7744 KB |
Output is correct |
18 |
Correct |
15 ms |
7760 KB |
Output is correct |
19 |
Correct |
14 ms |
7516 KB |
Output is correct |
20 |
Correct |
15 ms |
7516 KB |
Output is correct |
21 |
Correct |
15 ms |
7516 KB |
Output is correct |
22 |
Correct |
14 ms |
7512 KB |
Output is correct |
23 |
Correct |
14 ms |
7768 KB |
Output is correct |
24 |
Correct |
15 ms |
7512 KB |
Output is correct |