Submission #953564

#	Time	Username	Problem	Language	Result	Execution time	Memory
953564		batsukh2006	Stove (JOI18_stove)	C++17	0 / 100	0 ms	348 KiB

stove

#include<iostream>
#include<stdio.h>
#include<math.h>
#include<map>
#include<string>
#include<algorithm>
#include<vector>
#include<string.h>
#include<utility>
#include<set>
#include<cmath>
#include<queue>
#include<deque>
#include<functional>
#include<stack>
#include<limits.h>
#include<iomanip>
#include<unordered_map> 
#include<numeric>
#include<tuple>
#include<bitset>
using namespace std;
 
#define MOD 1000000007
#define int long long
#define endl '\n'
void solve(){
    int n,k; cin>>n>>k;
    vector<int> a(n+1);
    for(int i=1; i<=n; i++) cin>>a[i];
    int ans=1e12;
    int l=1,r=1e12;
    while(l<=r){
        int m=l+(r-l)/2;
        int sum=0,res=0,lst=1;
        for(int i=1; i<=n; i++){
            if(a[i]-a[lst]+1>m){
                res+=a[i-1]-a[lst]+1;
                sum++;
                lst=i;
            }
            if(i==n){
                res+=a[i]-a[lst]+1;
                sum++;
            }
        }
        if(sum<=k){
            r=m-1;
            ans=min(ans,res);
        }else{
            l=m+1;
        }
    }
    cout<<ans;
}
signed main(){
    // freopen("file.in", "r", stdin);
    // freopen("file.out", "w", stdout);
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int T=1;
    // cin>>T;
    while(T--){
        solve();
        cout<<endl;
    }
    return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50