Submission #871812

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
871812	2023-11-11T15:56:18 Z	dsyz	Rice Hub (IOI11_ricehub)	C++17	49 / 100	15 ms	3688 KB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;
using ll = long long;
#define MAXN (1000005)

int besthub(int R, int L, int X[], long long B){
	ll maximum = 0;
	ll Lptr = 0;
	ll Rptr = 0;
	ll curcost = 0;
	while(Lptr > 0 && curcost + abs(X[0] - X[Lptr - 1]) <= B){
		curcost += abs(X[0] - X[Lptr - 1]);
		Lptr--;
	}
	while(Rptr < R - 1 && curcost + abs(X[0] - X[Rptr + 1]) <= B){
		curcost += abs(X[0] - X[Rptr + 1]);
		Rptr++;
	}
	while(Rptr < R - 1 && abs(X[0] - X[Lptr]) > abs(X[0] - X[Rptr + 1])){
		curcost -= abs(X[0] - X[Lptr]);
		curcost += abs(X[0] - X[Rptr + 1]);
		Lptr++;
		Rptr++;
		while(Rptr < R - 1 && curcost + abs(X[0] - X[Rptr + 1]) <= B){
			curcost += abs(X[0] - X[Rptr + 1]);
			Rptr++;
		}
	}
	maximum = max(maximum,Rptr - Lptr + 1);
	for(ll pos = 1;pos < R;pos++){
		if(Rptr >= pos){
			curcost += ((pos - Lptr) * abs(X[pos] - X[pos - 1]));
			curcost -= ((Rptr - pos + 1) * abs(X[pos] - X[pos - 1]));
		}else{
			curcost += ((pos - Lptr) * abs(X[pos] - X[pos - 1]));
			while(Rptr < pos){
				Rptr++;
				curcost += abs(X[pos] - X[Rptr]);
			}
		}
		while(Lptr < pos && curcost > B){
			curcost -= abs(X[pos] - X[Lptr]);
			Lptr++;
		}
		while(Rptr < R - 1 && curcost + abs(X[pos] - X[Rptr + 1]) <= B){
			curcost += abs(X[pos] - X[Rptr + 1]);
			Rptr++;
		}
		while(Rptr < R - 1 && abs(X[pos] - X[Lptr]) > abs(X[pos] - X[Rptr + 1])){
			curcost -= abs(X[pos] - X[Lptr]);
			curcost += abs(X[pos] - X[Rptr + 1]);
			Lptr++;
			Rptr++;
			while(Rptr < R - 1 && curcost + abs(X[pos] - X[Rptr + 1]) <= B){
				curcost += abs(X[pos] - X[Rptr + 1]);
				Rptr++;
			}
		}
		maximum = max(maximum,Rptr - Lptr + 1);
	}
	return maximum;
}

Subtask #1

17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	448 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	600 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Incorrect	0 ms	344 KB	Output isn't correct
28	Halted	0 ms	0 KB	-

Subtask #3

0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	1 ms	452 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	352 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	600 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	352 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Incorrect	1 ms	348 KB	Output isn't correct
19	Halted	0 ms	0 KB	-

Subtask #4

32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	604 KB	Output is correct
2	Correct	2 ms	544 KB	Output is correct
3	Correct	15 ms	3672 KB	Output is correct
4	Correct	9 ms	3676 KB	Output is correct
5	Correct	7 ms	2908 KB	Output is correct
6	Correct	4 ms	2908 KB	Output is correct
7	Correct	14 ms	3420 KB	Output is correct
8	Correct	9 ms	3420 KB	Output is correct
9	Correct	4 ms	2908 KB	Output is correct
10	Correct	4 ms	2908 KB	Output is correct
11	Correct	10 ms	3684 KB	Output is correct
12	Correct	10 ms	3688 KB	Output is correct
13	Correct	5 ms	2908 KB	Output is correct
14	Correct	5 ms	2904 KB	Output is correct
15	Correct	7 ms	3456 KB	Output is correct
16	Correct	7 ms	3420 KB	Output is correct
17	Correct	9 ms	3420 KB	Output is correct
18	Correct	9 ms	3432 KB	Output is correct
19	Correct	8 ms	3676 KB	Output is correct
20	Correct	9 ms	3684 KB	Output is correct