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Submission #468858

# Submission time Handle Problem Language Result Execution time Memory
468858 2021-08-29T20:54:34 Z pere_gil Rice Hub (IOI11_ricehub) C++14
100 / 100
 24 ms 1484 KB 
#include "ricehub.h"
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;

ll get_sum(int l, int r, ll sum[]){
	return (l==0) ? sum[r] : sum[r]-sum[l-1];
}

bool check(int l, int r, ll b, int v[], ll sum[]){
	int med=(l+r)/2;
	ll act=(long long) v[med]*(med-l+1LL)-get_sum(l,med,sum);
	act+=(long long) get_sum(med,r,sum)-v[med]*(r-med+1LL);
	return act<=b;
}

int besthub(int n, int dist, int v[], ll b){
	ll sum[n];
	sum[0]=v[0];
	for(int i=1;i<n;i++)
		sum[i]=sum[i-1]+v[i];

	int res=0;
	for(int i=0;i<n;i++){
		int l=i,r=n-1,act=0;
		while(l<=r){
			int med=(l+r)/2;
			if(check(i,med,b,v,sum)){
				act=med;
				l=med+1;
			}
			else r=med-1;
		}
		res=max(res,act-i+1);
	}
	return res;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 2 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 276 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 2 ms 332 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 5 ms 460 KB Output is correct
3 Correct 24 ms 1484 KB Output is correct
4 Correct 24 ms 1356 KB Output is correct
5 Correct 11 ms 844 KB Output is correct
6 Correct 11 ms 836 KB Output is correct
7 Correct 22 ms 1472 KB Output is correct
8 Correct 22 ms 1416 KB Output is correct
9 Correct 11 ms 884 KB Output is correct
10 Correct 11 ms 844 KB Output is correct
11 Correct 24 ms 1356 KB Output is correct
12 Correct 24 ms 1468 KB Output is correct
13 Correct 11 ms 844 KB Output is correct
14 Correct 11 ms 844 KB Output is correct
15 Correct 18 ms 1152 KB Output is correct
16 Correct 18 ms 1104 KB Output is correct
17 Correct 21 ms 1284 KB Output is correct
18 Correct 21 ms 1312 KB Output is correct
19 Correct 22 ms 1396 KB Output is correct
20 Correct 22 ms 1392 KB Output is correct