Submission #752133

#	Time	Username	Problem	Language	Result	Execution time	Memory
752133		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	39 ms	2208 KiB

stove

#include<bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
//#define TimeCalculation
using namespace std;
const int N = 1e5 + 1;
int n, k;
int t[N];
priority_queue<int> pq;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    #ifdef TimeCalculation
        auto starttime = chrono::high_resolution_clock::now();
    #endif
    cin >> n >> k;
    for(int i = 1; i <= n; ++i){
        cin >> t[i];
        if(i > 1){
            pq.push(t[i] - t[i - 1] - 1);
        }
    }
    int ans = t[n] + 1 - t[1];
    --k;
    while(k--){
        ans -= pq.top();
        pq.pop();
    }
    cout << ans;
    #ifdef TimeCalculation
        auto endtime = chrono::high_resolution_clock::now();
        auto duration = chrono::duration_cast<chrono::milliseconds>(endtime - starttime).count();
        cout << "\n=====" << "\nTime elapsed: " << duration << " ms\n";
    #endif
}

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