oj.uz

Submission #837871

# Submission time Handle Problem Language Result Execution time Memory
837871 2023-08-25T19:18:54 Z Ahmed57 Feast (NOI19_feast) C++17
0 / 100
 689 ms 18508 KB 
#include<bits/stdc++.h>
using namespace std;
long long n,k;
long long arr[300001];
pair<long long,long long> check(int x){
    priority_queue<pair<long long,long long>> q;
    q.push({0,0});
    pair<long long,long long> ans = {0,0};
    for(int i = 0;i<n;i++){
        long long val = arr[i]+q.top().first-x;
        long long sec = (q.top().second)+1;
        pair<long long,long long> fawzya = {val,sec};
        ans = max(ans,fawzya);
        fawzya = ans;
        q.push({(-arr[i])+fawzya.first,fawzya.second});
        ans = max(ans,make_pair(fawzya.first,fawzya.second));
    }
    return ans;
}
int main(){
    cin>>n>>k;
    for(int i = 0;i<n;i++){
        cin>>arr[i];
        if(i)arr[i]+=arr[i-1];
    }
    long long l = 0 , r = 1e12 , ans = 0;
    while(l<=r){
        long long mid = (l+r)/2;
        pair<long long ,long long> an = check(mid);
        if(an.second>=k){
            ans =an.first+k*mid;
            l = mid+1;
        }else {
            r = mid-1;
        }
    }
    cout<<ans<<endl;
	return 0;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 527 ms 18164 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 369 ms 16612 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 689 ms 18508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 527 ms 18164 KB Output isn't correct
2 Halted 0 ms 0 KB -