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Submission #715560

# Submission time Handle Problem Language Result Execution time Memory
715560 2023-03-27T08:19:15 Z cbup Rice Hub (IOI11_ricehub) C++14
17 / 100
 462 ms 262144 KB 
#include<bits/stdc++.h>
using namespace std;

long long besthub(int n,int l,int x[],long long b){
    long long cost,ans=0;
    int mid;
    vector<long long> prefixSum(l,0);

    for(int i=1;i<=n;i++)prefixSum[i] = prefixSum[i-1]+x[i-1];
    //for(int i=1;i<=n;i++)cout<<prefixSum[i]<<" "; cout<<endl;
    for(int st=0;st<n;st++){
        for(int en=st;en<n;en++){
            mid = (st+en)/2;
            cost = (mid-st)*x[mid]-(prefixSum[mid]-prefixSum[st]) + (prefixSum[en+1]-prefixSum[mid+1])-(en-mid)*x[mid];

            if(cost <= b)ans = max(ans,en-st+1LL);
            //cout<<st<<" "<<en<<" "<<cost<<endl;
        }
    }
    return ans;


}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Runtime error 1 ms 340 KB Execution killed with signal 6
10 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 5 ms 7636 KB Output is correct
4 Correct 5 ms 7636 KB Output is correct
5 Runtime error 1 ms 468 KB Execution killed with signal 6
6 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 456 ms 1108 KB Output is correct
2 Correct 462 ms 1108 KB Output is correct
3 Runtime error 123 ms 262144 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -