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Submission #317135

# Submission time Handle Problem Language Result Execution time Memory
317135 2020-10-29T04:00:49 Z nandonathaniel Rice Hub (IOI11_ricehub) C++14
100 / 100
 19 ms 1792 KB 
#include "ricehub.h"
#include "bits/stdc++.h"
using namespace std;

int besthub(int R, int L, int X[], long long B)
{
	int ki=1,ka=R,res;
	while(ki<=ka){
		int mid=(ki+ka)/2;
		long long cost=0;
		int idx=(mid-1)/2;
		for(int i=0;i<mid;i++)cost+=abs(X[i]-X[idx]);
		long long mini=cost;
		for(int i=mid;i<R;i++){
			cost-=abs(X[i-mid]-X[idx]);
			idx++;
			int selisih=X[idx]-X[idx-1];
			cost-=(1LL*(i-idx)*selisih);
			cost+=(1LL*(mid-1-i+idx)*selisih);
			cost+=abs(X[i]-X[idx]);
			mini=min(mini,cost);
		}
		if(mini<=B){
			res=mid;
			ki=mid+1;
		}
		else ka=mid-1;
	}
	return res;
}

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:29:9: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   29 |  return res;
      |         ^~~

Subtask #1
17.0 / 17.0

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

Subtask #2
25.0 / 25.0

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

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 288 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 19 ms 1792 KB Output is correct
4 Correct 19 ms 1792 KB Output is correct
5 Correct 11 ms 896 KB Output is correct
6 Correct 9 ms 896 KB Output is correct
7 Correct 16 ms 1536 KB Output is correct
8 Correct 15 ms 1536 KB Output is correct
9 Correct 9 ms 896 KB Output is correct
10 Correct 9 ms 768 KB Output is correct
11 Correct 19 ms 1792 KB Output is correct
12 Correct 19 ms 1792 KB Output is correct
13 Correct 10 ms 896 KB Output is correct
14 Correct 10 ms 1024 KB Output is correct
15 Correct 15 ms 1408 KB Output is correct
16 Correct 14 ms 1408 KB Output is correct
17 Correct 17 ms 1664 KB Output is correct
18 Correct 17 ms 1664 KB Output is correct
19 Correct 18 ms 1664 KB Output is correct
20 Correct 18 ms 1664 KB Output is correct