Submission #975173

#	Time	Username	Problem	Language	Result	Execution time	Memory
975173		mxrs	Stove (JOI18_stove)	C++14	100 / 100	41 ms	1584 KiB

stove

#include <bits/stdc++.h>
#define long long long
using namespace std;
vector<int> v, d;
int n, k, ans,t;
int main() {
   cin>>n>>k;
    for(int i = 0; i < n; i++) {
        cin>>t;
        v.push_back(t);
    }
    for(int i = 1; i < n; i++) {
        d.push_back(v[i] - v[i-1] - 1);
    }
    sort(d.begin(), d.end(), greater<int>());
    ans = v[n-1] - v[0] + 1;
    for(int i = 0; i < k-1; i++) {
        ans -= d[i];
    }
    cout<<ans;
}

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