oj.uz

Submission #657718

# Submission time Handle Problem Language Result Execution time Memory
657718 2022-11-10T18:35:01 Z _Knyaz_ Stove (JOI18_stove) C++17
100 / 100
 19 ms 2844 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define int ll
#define all(x) (x).begin(),(x).end()
const int mod = 1e9+7;
const double PI = acos( -1. );
void in(){
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
}
int fenwick(vector<int> &vec, int i){
    int sum = 0;
    while(i > 0){
        sum += vec[i];
        i -= i & -i;
    }
    return sum;
}
void solve(){
    //in();
    int n, k; cin >> n >> k;
    vector<int> vec(n), ans(n - 1);
    for(auto &x:vec) cin >> x;
    sort(all(vec));
    for(int i = 1; i < n; i++) ans[i-1] = vec[i] - vec[i-1] - 1;
    sort(all(ans));
    int res = vec[n-1] - vec[0] + 1;
    for(int i = n - 2; i > n - k - 1; i--) res -= ans[i];
    cout << res;
}
signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int t; t = 1;
    //cin >> t;
    while(t--) solve();
}
/*
        ██╗  ██╗███╗   ██╗██╗   ██╗ █████╗ ███████╗
        ██║ ██╔╝████╗  ██║╚██╗ ██╔╝██╔══██╗╚══███╔╝
        █████╔╝ ██╔██╗ ██║ ╚████╔╝ ███████║  ███╔╝
        ██╔═██╗ ██║╚██╗██║  ╚██╔╝  ██╔══██║ ███╔╝
███████╗██║  ██╗██║ ╚████║   ██║   ██║  ██║███████╗███████╗
╚══════╝╚═╝  ╚═╝╚═╝  ╚═══╝   ╚═╝   ╚═╝  ╚═╝╚══════╝╚══════╝
*/

Compilation message

stove.cpp: In function 'void in()':
stove.cpp:9:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 19 ms 2784 KB Output is correct
17 Correct 18 ms 2844 KB Output is correct
18 Correct 19 ms 2776 KB Output is correct
19 Correct 19 ms 2776 KB Output is correct
20 Correct 19 ms 2816 KB Output is correct
21 Correct 19 ms 2836 KB Output is correct
22 Correct 18 ms 2780 KB Output is correct
23 Correct 19 ms 2768 KB Output is correct
24 Correct 19 ms 2772 KB Output is correct