Submission #257307

#	Time	Username	Problem	Language	Result	Execution time	Memory
257307		Fidisk	Stove (JOI18_stove)	C++14	100 / 100	26 ms	2944 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define oo 1e9
#define fi first
#define se second
#define sp(iiii) setprecision(iiii)
#define IO ios_base::sync_with_stdio(false); cin.tie(0)
#define ms(aaaa,xxxx) memset(aaaa,xxxx,sizeof(aaaa))
#define cntbit(xxxx) __builtin_popcount(xxxx)
#define getbit(xxxx,aaaa) ((xxxx>>(aaaa-1))&1)
#define _cos(xxxx) cos(xxxx*acos(-1)/180)
#define _sin(xxxx) sin(xxxx*acos(-1)/180)
#define _tan(xxxx) tan(xxxx*acos(-1)/180)
#define PE cout<<fixed

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<pair<int,int>,int> piii;
typedef pair<long long,long long> pll;
typedef pair<pair<long long,long long>,long long> plll;

const ld pi=acos(-1);

ll n,k,t[500009],a[500009],res,i;

int main(){
    IO;
    cin>>n>>k;
    for (i=1;i<=n;i++) {
        cin>>t[i];
    }
    for (i=2;i<=n;i++) {
        a[i-1]=t[i]-t[i-1]-1;
    }
    res=t[n]-t[1]+1;
    sort(a+1,a+n);
    for (i=n-k+1;i<n;i++) {
        res-=a[i];
    }
    cout<<res;
}
   

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