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Submission #151336

# Submission time Handle Problem Language Result Execution time Memory
151336 2019-09-02T13:19:44 Z GioChkhaidze Rice Hub (IOI11_ricehub) C++14
100 / 100
 21 ms 3364 KB 
#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;
long long N,len,cost,A[100005],S[100005];
bool check(long long x) {
	long long idx=(x+1)/2;
	for (int i=idx; i+x/2<=N; i++) 
		if (cost>=((x-1)/2)*A[i]-(S[i-1]-S[i-1-(x-1)/2])+(S[i+x/2]-S[i])-(x-(x-1)/2-1)*A[i]) return 1;
	return 0;
}

int besthub(int n, int L, int X[], long long B){  
	N=n,len=L,cost=B;
	for (int i=0; i<N; i++) {
		A[i+1]=X[i];
		S[i+1]=S[i]+A[i+1];
	}

	int l=1,r=N,mid,res;
	
	while (l<=r) { 
		mid=(l+r)/2;
		if (check(mid)) { res=mid; l=mid+1; }
							  else r=mid-1;
	}	

    return res;
}

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:27:12: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return res;
            ^~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 528 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 2 ms 424 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 400 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 504 KB Output is correct
25 Correct 3 ms 504 KB Output is correct
26 Correct 3 ms 412 KB Output is correct
27 Correct 3 ms 508 KB Output is correct
28 Correct 4 ms 504 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 872 KB Output is correct
2 Correct 5 ms 888 KB Output is correct
3 Correct 19 ms 3320 KB Output is correct
4 Correct 19 ms 3320 KB Output is correct
5 Correct 10 ms 1656 KB Output is correct
6 Correct 10 ms 1656 KB Output is correct
7 Correct 16 ms 3064 KB Output is correct
8 Correct 17 ms 3192 KB Output is correct
9 Correct 9 ms 1528 KB Output is correct
10 Correct 10 ms 1528 KB Output is correct
11 Correct 21 ms 3264 KB Output is correct
12 Correct 21 ms 3364 KB Output is correct
13 Correct 11 ms 1656 KB Output is correct
14 Correct 11 ms 1660 KB Output is correct
15 Correct 16 ms 2552 KB Output is correct
16 Correct 16 ms 2552 KB Output is correct
17 Correct 18 ms 2936 KB Output is correct
18 Correct 19 ms 3036 KB Output is correct
19 Correct 21 ms 3192 KB Output is correct
20 Correct 21 ms 3192 KB Output is correct