oj.uz

Submission #880987

# Submission time Handle Problem Language Result Execution time Memory
880987 2023-11-30T10:10:15 Z theghostking Stove (JOI18_stove) C++17
100 / 100
 56 ms 5320 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

signed main() {
    int n,k;
    cin >> n >> k;
    if (n==1){
        cout << "1\n";
        return 0;
    }
    int arr[n];
    for (int i = 0; i<n; i++){
        cin >> arr[i];
    }
    sort(arr,arr+n);
    vector<bool> pres(n);
    pres[0] = true;
    priority_queue<pair<int,int>> pq;
    for (int i = 0; i<n-1; i++){
        pq.push({arr[i+1]-arr[i],i});
    }
    int kc = k;
    k--;
    while (k--){
        pres[pq.top().second+1] = true;
        pq.pop();
    }
    vector<int> nxt(n,-1);
    int tr = 0;
    for (int i = 1; i<n; i++){
        if (pres[i]){
            nxt[tr] = i-1;
            tr = i;
        }
    }
    int lst = arr[0];
    int ind = 0;
    int ans = 0;
    for (int i = 0; i<n; i++){
        if (pres[i]){
            int nd = nxt[i];
            if (nd == -1){
                ans += (arr[n-1]-arr[i]+1);
            }
            else{
                ans += (arr[nd]-arr[i]+1);
            }
        }
    }
    cout << ans;
    return 0;
}

Compilation message

stove.cpp: In function 'int main()':
stove.cpp:24:9: warning: unused variable 'kc' [-Wunused-variable]
   24 |     int kc = k;
      |         ^~
stove.cpp:38:9: warning: unused variable 'lst' [-Wunused-variable]
   38 |     int lst = arr[0];
      |         ^~~
stove.cpp:39:9: warning: unused variable 'ind' [-Wunused-variable]
   39 |     int ind = 0;
      |         ^~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 488 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 2 ms 348 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 488 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 34 ms 4388 KB Output is correct
17 Correct 34 ms 4352 KB Output is correct
18 Correct 37 ms 4392 KB Output is correct
19 Correct 34 ms 5320 KB Output is correct
20 Correct 40 ms 4380 KB Output is correct
21 Correct 44 ms 4500 KB Output is correct
22 Correct 44 ms 4292 KB Output is correct
23 Correct 45 ms 4292 KB Output is correct
24 Correct 56 ms 4292 KB Output is correct