Submission #1331114

#	Time	Username	Problem	Language	Result	Execution time	Memory
1331114		norrawichzzz	Stove (JOI18_stove)	C++20	0 / 100	0 ms	344 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long 
#define pi pair<int,int>

const int INF = 4e18;

void solve() {
    int n,k;
    cin>> n>> k;

    vector<int> a(n);
    for (int i=0; i<n; i++) cin>> a[i];

    int ans = a[n-1] - a[0] + 1;
    vector<int> g;
    for (int i=1; i<n; i++) g.push_back(a[i]+1-a[i-1]);
    
    sort(g.rbegin(), g.rend());
    for (int i=0; i<k-1; i++) {
        ans -= g[i];
    }
    cout<< ans;

}

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);


    int t;
    t=1;

    while (t--) {
        solve();
    }
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50