Submission #1036703

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036703		HotStepBroz	Stove (JOI18_stove)	C++14	100 / 100	51 ms	3320 KiB

stove

    #include <bits/stdc++.h>

    using namespace std;
    #define ll long long
    const ll N = 1e5 + 5 ;
    const ll INF = 0x3f3f3f3f3f3f3f3f ;
    const ll MOD = 1e9 + 7 ;

    ll n , k , a[N] , res = 0 ,ans = 0 ;
    vector< ll > v ;

    int main()
    {
        cin >> n >> k ;

        for( int i = 1 ; i <= n ; i++) cin >> a[i] ;

        for( int i = 2 ; i <= n ; i++)
        {
            v.push_back(a[i] - a[i-1] - 1 ) ;
        }

        sort( v.begin() , v.end() ) ;

        reverse(v.begin() , v.end() ) ;

        for( int i = 0 ; i < k -1  ; i++) res += v[i] ;

        cout << a[n] - a[1] + 1  - res << '\n' ;
    }

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