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Submission #235873

# Submission time Handle Problem Language Result Execution time Memory
235873 2020-05-30T08:48:53 Z Dilshod_Imomov Rice Hub (IOI11_ricehub) C++17
100 / 100
 27 ms 2176 KB 
#include "ricehub.h"	
#include <bits/stdc++.h>
using namespace std;
# define LL long long

long long ps[100100];

bool can( int k, LL b, int n, int a[] ) {
	int j = k - 1;
	for ( int i = 0; j < n; j++ ) {
		int x = a[(i + j) / 2], m = (i + j) / 2;
		LL sum = ps[m - 1];
		if ( i ) {
			sum -= ps[i - 1];
		}
		sum = (m - i) * x - sum;
		LL sum1 = ps[j] - ps[m];
		sum1 -= x * (j - m);
		LL cnt = sum + sum1;
		if ( cnt <= b ) {
			return 1;
		}
		i++;
	}
	return 0;
}

int besthub(int n, int mx, int a[], long long b)
{
	
	for ( int i = 0; i < n; i++ ) {
		ps[i] = a[i];
		if ( i ) {
			ps[i] += ps[i - 1];
		}
	}

	int l = 0, r = n, m, ans = 1;
	while ( l <= r ) {
		m = (l + r) / 2;
		if ( can( m, b, n, a ) ) {
			ans = m;
			l = m + 1;
		}
		else {
			r = m - 1;
		}
	}
	return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 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 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 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 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 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 5 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 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 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
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 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 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 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 384 KB Output is correct
25 Correct 6 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

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 640 KB Output is correct
2 Correct 8 ms 512 KB Output is correct
3 Correct 21 ms 1536 KB Output is correct
4 Correct 21 ms 1536 KB Output is correct
5 Correct 13 ms 896 KB Output is correct
6 Correct 13 ms 896 KB Output is correct
7 Correct 19 ms 1536 KB Output is correct
8 Correct 19 ms 1536 KB Output is correct
9 Correct 13 ms 896 KB Output is correct
10 Correct 13 ms 896 KB Output is correct
11 Correct 23 ms 1536 KB Output is correct
12 Correct 27 ms 1536 KB Output is correct
13 Correct 15 ms 896 KB Output is correct
14 Correct 14 ms 1280 KB Output is correct
15 Correct 18 ms 2048 KB Output is correct
16 Correct 18 ms 1920 KB Output is correct
17 Correct 21 ms 2176 KB Output is correct
18 Correct 21 ms 2088 KB Output is correct
19 Correct 22 ms 2168 KB Output is correct
20 Correct 22 ms 2176 KB Output is correct