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Submission #880564

# Submission time Handle Problem Language Result Execution time Memory
880564 2023-11-29T16:25:23 Z AlphaMale06 Rice Hub (IOI11_ricehub) C++14
17 / 100
 9 ms 5300 KB 
#include<bits/stdc++.h>
#include "ricehub.h"

using namespace std;
using ll = long long;


int besthub(int n, int L, int a[], long long c)
{
    if(n==1)return 1;
    ll sum=0;
    ll pref[n+1];
    ll suf[n+1];
    suf[n]=0;
    pref[0]=0;
    for(int i=0; i< n; i++){
        sum+=a[i];
        pref[i+1]=sum;
    }
    for(int i=n-1; i>=0; i--){
        suf[i]=pref[n]-pref[i];
    }
    ll sufind=n;
    ll mx;
    ll s=n/2;
    ll cost=a[s]*(s+1)-pref[s+1]-a[s]*(n-s)+suf[s+1];
    while(cost>c){
        s=sufind/2;
        cost=a[s]*(s+1)-pref[s+1]-a[s]*(sufind-s)+suf[s]-suf[sufind];
        if(cost<=c)break;
        sufind--;
    }
    mx=sufind;
    for(int i=1; i< n; i++){
        cost=0;
        while(cost<=c && sufind<n){
            s=(sufind+i)/2;
            cost=a[s]*(s-i+1)-pref[s+1]+pref[i]-a[s]*(sufind-s)+suf[s+1]-suf[sufind+1];
            sufind++;
        }
        if(sufind==n && cost<=c){
            mx=max(mx, sufind-i);
            break;
        }
        else{
            sufind--;
            mx=max(mx, sufind-i);
        }
    }
    return mx;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Incorrect 0 ms 344 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 9 ms 4188 KB Output is correct
4 Incorrect 9 ms 5300 KB Output isn't correct
5 Halted 0 ms 0 KB -