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Submission #116540

# Submission time Handle Problem Language Result Execution time Memory
116540 2019-06-12T20:33:38 Z Runtime_error_ Rice Hub (IOI11_ricehub) C++14
100 / 100
 18 ms 3328 KB 
//IOI 2011 Day1 Problem 3 rice hub 
//Full solution
#include "ricehub.h" //for CMS
//#include "grader.h" //for yandex
#include <bits/stdc++.h>
#define ll long long
using namespace std;

const ll inf=1e5+9;
ll pre[inf],a[inf],N,K;

bool check(ll len){

    for(ll i=len;i<=N;i++){
        ll r=i,l=i-len+1,mid=(l+r)/2;
        ll cost=(pre[r]-pre[mid]) -(a[mid]*(r-mid));
        cost+=(a[mid]*(mid-l))-(pre[mid-1]-pre[l-1]);
        if(cost<=K)
            return 1;
    }
    return 0;
}

int besthub(int n,int m,int x[],ll k){

    N=n;
    K=k;
    for(ll i=0;i<n;i++)
        a[i+1]=x[i];

    for(ll i=1;i<=n;i++)
        pre[i]=pre[i-1]+a[i];

    ll ans=0;

    ll l=1,r=n+1;
    while(r-l>1){
        ll mid=(l+r)/2;
        if(check(mid))
            l=mid;
        else
            r=mid;
    }
    return (int)l;
}

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:35:8: warning: unused variable 'ans' [-Wunused-variable]
     ll ans=0;
        ^~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 8 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 3 ms 384 KB Output is correct
22 Correct 3 ms 640 KB Output is correct
23 Correct 3 ms 512 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 896 KB Output is correct
2 Correct 6 ms 880 KB Output is correct
3 Correct 17 ms 3320 KB Output is correct
4 Correct 17 ms 3328 KB Output is correct
5 Correct 9 ms 1664 KB Output is correct
6 Correct 9 ms 1664 KB Output is correct
7 Correct 15 ms 3072 KB Output is correct
8 Correct 17 ms 3072 KB Output is correct
9 Correct 10 ms 1536 KB Output is correct
10 Correct 9 ms 1664 KB Output is correct
11 Correct 18 ms 3320 KB Output is correct
12 Correct 17 ms 3328 KB Output is correct
13 Correct 10 ms 1664 KB Output is correct
14 Correct 9 ms 1664 KB Output is correct
15 Correct 13 ms 2560 KB Output is correct
16 Correct 13 ms 2560 KB Output is correct
17 Correct 16 ms 3044 KB Output is correct
18 Correct 15 ms 2944 KB Output is correct
19 Correct 17 ms 3200 KB Output is correct
20 Correct 17 ms 3200 KB Output is correct