oj.uz

Submission #875623

# Submission time Handle Problem Language Result Execution time Memory
875623 2023-11-20T08:31:16 Z raul2008487 Stove (JOI18_stove) C++17
100 / 100
 15 ms 3352 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define eb emplace_back
#define vl vector<ll>
#define fi first
#define se second
#define in insert
#define mpr make_pair
#define lg(x) __lg(x)
#define bpc(x) __builtin_popcount(x)
#define all(v) v.begin(), v.end()
#define endl "\n"

using namespace std;
const int sz = 2e5+5; /// size is changed
const int mod = 1e9+7;
const ll inf = 1000000000;
ll  a[sz];
void solve(){
    ll n, k, i, j;
    cin>>n>>k;
    vl v(n), dis;
    for(i=0;i<n;i++){
        cin>>v[i];
    }
    ll last = v[0], cnt = 1, ans = n;
    for(i=1;i<n;i++){
        if((v[i]-1) != last){
            dis.pb(v[i]-1-last);
            cnt++;
        }
        last = v[i];
    }
    //cout <<endl<< cnt << endl;
    if(k >= cnt){
        cout << n << endl;
        return ;
    }
    sort(all(dis));
    cnt -= k;
    for(i=0;i<cnt;i++){
        ans += dis[i];
    }
    cout << ans << endl;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //precomp();
    ll tst=1;
    //cin>>tst;
    while(tst--){
        solve();
    }
}
/*
10 1
1
2
5
6
8
11
13
15
16
20
*/

Compilation message

stove.cpp: In function 'void solve()':
stove.cpp:21:17: warning: unused variable 'j' [-Wunused-variable]
   21 |     ll n, k, i, j;
      |                 ^

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 348 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 460 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 0 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 348 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 460 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 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 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 348 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 460 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 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 14 ms 3292 KB Output is correct
17 Correct 15 ms 3292 KB Output is correct
18 Correct 14 ms 3292 KB Output is correct
19 Correct 15 ms 3292 KB Output is correct
20 Correct 15 ms 3292 KB Output is correct
21 Correct 15 ms 3292 KB Output is correct
22 Correct 14 ms 3292 KB Output is correct
23 Correct 15 ms 3352 KB Output is correct
24 Correct 15 ms 3292 KB Output is correct