Submission #468857

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
468857	2021-08-29T20:54:04 Z	pere_gil	Rice Hub (IOI11_ricehub)	C++14	100 / 100	25 ms	1480 KB

ricehub

#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)>>1;
	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)>>1;
			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	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	0 ms	204 KB	Output is correct
5	Correct	0 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	0 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	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	0 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	0 ms	204 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	0 ms	204 KB	Output is correct
22	Correct	0 ms	204 KB	Output is correct
23	Correct	0 ms	204 KB	Output is correct
24	Correct	0 ms	204 KB	Output is correct
25	Correct	0 ms	204 KB	Output is correct
26	Correct	0 ms	204 KB	Output is correct
27	Correct	0 ms	204 KB	Output is correct
28	Correct	0 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	0 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	0 ms	204 KB	Output is correct
16	Correct	0 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	252 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	332 KB	Output is correct
28	Correct	1 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	4 ms	460 KB	Output is correct
3	Correct	22 ms	1476 KB	Output is correct
4	Correct	22 ms	1480 KB	Output is correct
5	Correct	10 ms	844 KB	Output is correct
6	Correct	10 ms	880 KB	Output is correct
7	Correct	20 ms	1356 KB	Output is correct
8	Correct	20 ms	1384 KB	Output is correct
9	Correct	10 ms	888 KB	Output is correct
10	Correct	10 ms	888 KB	Output is correct
11	Correct	22 ms	1476 KB	Output is correct
12	Correct	22 ms	1468 KB	Output is correct
13	Correct	10 ms	800 KB	Output is correct
14	Correct	10 ms	844 KB	Output is correct
15	Correct	17 ms	1100 KB	Output is correct
16	Correct	16 ms	1168 KB	Output is correct
17	Correct	25 ms	1340 KB	Output is correct
18	Correct	19 ms	1228 KB	Output is correct
19	Correct	22 ms	1404 KB	Output is correct
20	Correct	21 ms	1416 KB	Output is correct