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Submission #977775

# Submission time Handle Problem Language Result Execution time Memory
977775 2024-05-08T10:53:39 Z Amaarsaa Rice Hub (IOI11_ricehub) C++14
100 / 100
 14 ms 3676 KB 
#include<bits/stdc++.h>
#include "ricehub.h"
using namespace std;
using ll = long long;
ll Pre[100005];
ll Sum(ll l, ll r) {
	if ( l == 0) return Pre[r];
	return Pre[r] - Pre[l - 1];
}
int besthub(int R, int L, int X[], long long B)	{
	ll s;
	int i, ans = 1, mn, l, r,lo, hi, mid;
	for (i = 0; i < R; i ++) {
		if ( i == 0) Pre[i] = X[i];
		else Pre[i] = Pre[i - 1] + X[i];
	}
	for (int i = 1; i + 1 < R; i ++) {
		lo = 0;
		hi = R + 1;
		while ( lo  < hi ) {
			mid = (lo +hi)/2;
			l = i - mid;
			r = i + mid;
			if ( l < 0 || r >= R) {
				hi =mid;
				continue;
			}
		//	cout << mid << " " <<l << " " << i << " " << i  + 1 << " " << r<<" " <<Sum(i + 1, r)  << " " << Sum(l, i) << endl;
			if ( Sum(i + 1, r) - Sum(l, i - 1) <= B) lo = mid + 1;
			else hi = mid;
		}
		mid = lo  ;
	//	cout << mid << endl;
		
		l = i - mid ;
		r = i + mid;
		s =  Sum(i + 1, r - 1) - Sum(l + 1, i - 1) ;
	//	cout << l << " " << r <<" " << s << endl;
		mn = INT_MAX;
		if ( l >= 0) {
			mn = min(mn, X[i] - X[l]);
		}
		if ( r < R) {
			mn = min(mn, X[r] - X[i]);
		}
		if ( mn == INT_MAX) {
			ans = max(ans, r - l - 1);
			continue;
		}
		s = s + mn;
		if (s <= B) {
			ans = max(ans, r - l);
		}
		else ans = max(ans, r - l - 1);
	}
	

	return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2404 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2480 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2392 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2404 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2488 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2492 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2532 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2648 KB Output is correct
2 Correct 3 ms 2652 KB Output is correct
3 Correct 14 ms 2672 KB Output is correct
4 Correct 14 ms 2648 KB Output is correct
5 Correct 6 ms 2652 KB Output is correct
6 Correct 6 ms 2672 KB Output is correct
7 Correct 13 ms 2496 KB Output is correct
8 Correct 13 ms 2648 KB Output is correct
9 Correct 5 ms 2652 KB Output is correct
10 Correct 5 ms 2652 KB Output is correct
11 Correct 14 ms 2652 KB Output is correct
12 Correct 14 ms 2652 KB Output is correct
13 Correct 9 ms 2648 KB Output is correct
14 Correct 6 ms 2648 KB Output is correct
15 Correct 11 ms 2652 KB Output is correct
16 Correct 11 ms 3276 KB Output is correct
17 Correct 13 ms 3420 KB Output is correct
18 Correct 13 ms 3420 KB Output is correct
19 Correct 14 ms 3676 KB Output is correct
20 Correct 14 ms 3532 KB Output is correct