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Submission #556477

# Submission time Handle Problem Language Result Execution time Memory
556477 2022-05-03T08:37:45 Z Dan4Life Rice Hub (IOI11_ricehub) C++17
0 / 100
 2 ms 468 KB 
#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long

ll pref[100010];

ll sum(int i, int j){ return pref[j+1]-pref[i]; }

int besthub(int n, int m, int a[], ll b)
{
    pref[0] = 0; int ans = 0;
    for(int i = 0; i < n; i++)
        pref[i+1] = pref[i]+a[i];
    for(int i = 0; i < n; i++){
        int l = i, r = n-1;
        while(l<r){
            int mid = (l+r+1)/2;
            int x = (i+mid+1)/2, xx = (i+mid-1)/2;
            if(sum(x,mid)-sum(i,x-1)<=b) l=mid;
            else r = mid-1;
        }
        ans = max(ans, l-i+1);
    }
    return ans;
}

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:19:34: warning: unused variable 'xx' [-Wunused-variable]
   19 |             int x = (i+mid+1)/2, xx = (i+mid-1)/2;
      |                                  ^~

Subtask #1
0 / 17.0

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

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 0 ms 212 KB Output is correct
4 Incorrect 1 ms 212 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 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Incorrect 2 ms 468 KB Output isn't correct
3 Halted 0 ms 0 KB -