답안 #224548

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
224548 2020-04-18T11:46:58 Z T0p_ 쌀 창고 (IOI11_ricehub) C++14
100 / 100
179 ms 3328 KB
#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;

long long pos[100100], qs[100100];

long long cost_r(int i, int j)
{
	if(i > j) return 0;
	return qs[j] - qs[i] - pos[i]*(j-i);
}

long long cost_l(int i, int j)
{
	return pos[j]*(j-i) - qs[j-1] + qs[i-1];
}

int solve_l(int i, long long bl)
{
	int l = 1, r = i;
	while(l != r)
	{
		int mid = (l+r)>>1;
		if(cost_l(mid, i) <= bl) r = mid;
		else l = mid+1;
	}
	return i-l;
}

int besthub(int R, int L, int X[], long long B)
{
	int ans = 1;

	for(int i=0 ; i<R ; i++)
	{
		pos[i+1] = X[i];
		qs[i+1] = qs[i] + X[i];
	}

	for(int i=1 ; i<=R ; i++)
	{
		int l=i, r = R;
		while(l != r)
		{
			int mid = (l+r+1)>>1;
			long long br = cost_r(i, mid);
			if(br > B)
			{
				r = mid-1;
				continue ;
			}
			long long bl = B - br;
			int hl = solve_l(i, bl);
			if(mid - i + hl >= mid - 1 - i + solve_l(i, B - cost_r(i, mid-1))) l = mid;
			else r = mid-1;
		}
		ans = max(ans, 1+l-i + solve_l(i, B - cost_r(i, l)));
	}
	return ans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 360 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 9 ms 512 KB Output is correct
22 Correct 9 ms 512 KB Output is correct
23 Correct 8 ms 512 KB Output is correct
24 Correct 9 ms 512 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 512 KB Output is correct
27 Correct 11 ms 512 KB Output is correct
28 Correct 11 ms 512 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 896 KB Output is correct
2 Correct 16 ms 896 KB Output is correct
3 Correct 115 ms 3328 KB Output is correct
4 Correct 179 ms 3328 KB Output is correct
5 Correct 32 ms 1664 KB Output is correct
6 Correct 33 ms 1664 KB Output is correct
7 Correct 111 ms 3148 KB Output is correct
8 Correct 149 ms 3072 KB Output is correct
9 Correct 96 ms 1656 KB Output is correct
10 Correct 97 ms 1652 KB Output is correct
11 Correct 116 ms 3320 KB Output is correct
12 Correct 176 ms 3320 KB Output is correct
13 Correct 47 ms 1664 KB Output is correct
14 Correct 47 ms 1664 KB Output is correct
15 Correct 81 ms 2560 KB Output is correct
16 Correct 127 ms 2560 KB Output is correct
17 Correct 101 ms 3064 KB Output is correct
18 Correct 150 ms 3072 KB Output is correct
19 Correct 107 ms 3200 KB Output is correct
20 Correct 166 ms 3276 KB Output is correct