Submission #1265602

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265602		zagaro	Stove (JOI18_stove)	C++17	100 / 100	12 ms	1476 KiB

stove

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
/**zagaro & lauren <3**/
#define mod 1000000007 //1e9 + 7
#define pi acos(-1)
#define wl while
#define str string
#define ENDL "\n"
#define sal ' '
#define tp_set ll
#define prc(n) cout.precision(n);cout<<fixed;
#define ord_set tree<tp_set, null_type, less<tp_set>, rb_tree_tag, tree_order_statistics_node_update>
typedef long long ll;
typedef bool bl;
typedef char car;
using namespace std;
using namespace __gnu_pbds;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n, k, a, b;
    cin>>n>>k;
    k = n-k;
    cin>>a;
    vector<ll> vec;
    for(int i=2;i<=n;i++){
        cin>>b;
        vec.push_back(b-(a+1));
        a=b;
    }
    sort(vec.begin(), vec.end());
    for(int i=1;i<=k;i++)n+=vec[i-1];
    cout<<n<<ENDL;
    return 0;
}

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