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Submission #233125

# Submission time Handle Problem Language Result Execution time Memory
233125 2020-05-19T12:03:54 Z crossing0ver Rice Hub (IOI11_ricehub) C++17
100 / 100
 22 ms 2432 KB 
#include<bits/stdc++.h>
#include "ricehub.h"
using namespace std;
int besthub(int n, int L, int X[], long long B){ 
	long long sum = 0,tot = 0;
	int num = 0;
	int last = 0;
	vector<long long> PR(n);
	int ans = 0,ps = 0;
	for (int i = 0 ; i < n; i++) {
		sum += X[i];
		tot += X[i];
		PR[i] = sum;         
		num++;                   
		while (true) {
		long long  e = tot/num;
		int pos = (last + i + 1)/2;
		long long D = 0; 
		long long s = 1ll*X[pos]*(pos - last + 1) - (PR[pos] - (last ? PR[last-1] : 0)) + (PR[i] - PR[pos]) -1ll*X[pos]*( i - pos);
		if (s <= B)
		if (ans < i - last + 1) 
			ans = i - last + 1, ps = X[pos];
		if (pos > last) pos--;
		
		D = s; 
		/*                                  
		pos = upper_bound(X + last, X + i+1, e) - X - 1;
		if (pos <= i && pos >= last) {
		s =X[pos]*(pos - last + 1) - (PR[pos] - (last ? PR[last-1] : 0)) + (PR[i] - PR[pos]) -X[pos]*( i - pos);
		D = min(D,s);
			if (s <= B)
		if (ans < i - last + 1)        
			ans = i - last + 1, ps = X[pos];
		}      */
		if (D > B) {
			tot-=X[last];
			last++;
			num--;
			continue;
		}                      
		else break;
		}
	}
	return ans;
}         /*
main() {
	int n,L;
	long long B;
	cin >> n >> L >> B;   int X[n];
	for (int i = 0; i < n ; i++) cin >> X[i];
	 cout << besthub(n,L,X,B);
}          */

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:16:14: warning: unused variable 'e' [-Wunused-variable]
   long long  e = tot/num;
              ^
ricehub.cpp:9:14: warning: variable 'ps' set but not used [-Wunused-but-set-variable]
  int ans = 0,ps = 0;
              ^~

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 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 432 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 4 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 4 ms 256 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 256 KB Output is correct
24 Correct 4 ms 256 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 4 ms 384 KB Output is correct
27 Correct 5 ms 256 KB Output is correct
28 Correct 5 ms 256 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 256 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 4 ms 256 KB Output is correct
10 Correct 4 ms 256 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 4 ms 384 KB Output is correct
15 Correct 5 ms 256 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 256 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 6 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 6 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 7 ms 512 KB Output is correct
2 Correct 7 ms 640 KB Output is correct
3 Correct 22 ms 1536 KB Output is correct
4 Correct 19 ms 1536 KB Output is correct
5 Correct 10 ms 896 KB Output is correct
6 Correct 11 ms 896 KB Output is correct
7 Correct 17 ms 1536 KB Output is correct
8 Correct 17 ms 1536 KB Output is correct
9 Correct 11 ms 896 KB Output is correct
10 Correct 10 ms 896 KB Output is correct
11 Correct 22 ms 1536 KB Output is correct
12 Correct 21 ms 1536 KB Output is correct
13 Correct 12 ms 1280 KB Output is correct
14 Correct 12 ms 1280 KB Output is correct
15 Correct 18 ms 1920 KB Output is correct
16 Correct 17 ms 1920 KB Output is correct
17 Correct 20 ms 2304 KB Output is correct
18 Correct 20 ms 2304 KB Output is correct
19 Correct 21 ms 2432 KB Output is correct
20 Correct 21 ms 2432 KB Output is correct