Submission #114015

#	Time	Username	Problem	Language	Result	Execution time	Memory
114015		MladenP	Stove (JOI18_stove)	C++17	100 / 100	22 ms	1820 KiB

stove

#include<bits/stdc++.h>
#define STIZE(x) fprintf(stderr, "STIZE%d\n", x);
#define PRINT(x) fprintf(stderr, "%s = %d\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define mid (l+r)/2
#define endl '\n'
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
#define MAXN 100010
int N, K, a[MAXN], rez;
int main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); cerr.tie(0);
    cin >> N >> K;
    for(int i = 1; i <= N; i++) cin >> a[i];
    sort(a+1, a+1+N);
    rez = a[N]-a[1]+1;
    for(int i = N; i >= 2; i--) a[i] = a[i]-a[i-1]-1;
    sort(a+2, a+1+N);
    for(int i = 0; i < K-1; i++) rez -= a[N-i];
    cout << rez;
}

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