Submission #199392

# Submission time Handle Problem Language Result Execution time Memory
199392 2020-02-01T07:28:24 Z kshitij_sodani Detecting Molecules (IOI16_molecules) C++17
46 / 100
137 ms 632 KB
#include <iostream>
#include <bits/stdc++.h>
#include "molecules.h"
using namespace std;
typedef  long long int llo ;

#define mp make_pair
#define pb push_back
#define a first
#define b second
vector<int> find_subset(int l,int u,vector<int> w){
	int dp[10001];
	memset(dp,0,sizeof(dp));
	dp[0]=1;
	for(int j=0;j<w.size();j++){
		for(int i=10001;i>=w[j];i--){
			if(dp[i-w[j]]!=0 and dp[i]==0){
				dp[i]=j+1;
			}
		}
	}
	int ind=-1;
	for(int i=l;i<u+1;i++){
		if(dp[i]>0){
			ind=i;
			break;
		}
	}
	//cout<<ind<<endl;
	//cout<<w[dp[15]]<<endl;
	vector<int> ans;
	if(ind==-1){
		return ans;
	}
	while(ind>0){
		ans.pb(dp[ind]-1);
		ind-=w[dp[ind]-1];
	}
	return ans;
}
/*
int main(){

	vector<int> ss=find_subset(15,17,{6,8,8,7});
	for(int i=0;i<ss.size();i++){
		cout<<ss[i]<<" ";
	}
	cout<<endl;


	return 0;

}*/

Compilation message

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:15:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int j=0;j<w.size();j++){
              ~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB OK (n = 1, answer = NO)
2 Correct 5 ms 376 KB OK (n = 1, answer = NO)
3 Correct 5 ms 376 KB OK (n = 1, answer = YES)
4 Correct 5 ms 376 KB OK (n = 2, answer = YES)
5 Correct 5 ms 376 KB OK (n = 2, answer = YES)
6 Correct 5 ms 376 KB OK (n = 3, answer = YES)
7 Correct 5 ms 376 KB OK (n = 3, answer = YES)
8 Correct 6 ms 376 KB OK (n = 3, answer = YES)
9 Correct 5 ms 376 KB OK (n = 3, answer = YES)
10 Correct 5 ms 380 KB OK (n = 3, answer = YES)
11 Correct 5 ms 380 KB OK (n = 3, answer = YES)
12 Correct 5 ms 376 KB OK (n = 3, answer = YES)
13 Correct 5 ms 376 KB OK (n = 3, answer = NO)
14 Correct 5 ms 376 KB OK (n = 3, answer = YES)
15 Correct 5 ms 376 KB OK (n = 3, answer = YES)
16 Correct 5 ms 376 KB OK (n = 3, answer = NO)
17 Correct 5 ms 376 KB OK (n = 3, answer = NO)
18 Correct 6 ms 376 KB OK (n = 100, answer = NO)
19 Correct 6 ms 376 KB OK (n = 100, answer = YES)
# Verdict Execution time Memory Grader output
1 Correct 5 ms 380 KB OK (n = 12, answer = YES)
2 Correct 5 ms 376 KB OK (n = 12, answer = YES)
3 Correct 5 ms 376 KB OK (n = 12, answer = NO)
4 Correct 5 ms 376 KB OK (n = 12, answer = NO)
5 Correct 5 ms 376 KB OK (n = 12, answer = YES)
6 Correct 5 ms 376 KB OK (n = 12, answer = YES)
7 Correct 5 ms 376 KB OK (n = 12, answer = YES)
8 Correct 5 ms 376 KB OK (n = 12, answer = YES)
9 Correct 6 ms 504 KB OK (n = 6, answer = YES)
10 Correct 5 ms 376 KB OK (n = 12, answer = YES)
11 Correct 6 ms 376 KB OK (n = 100, answer = NO)
12 Correct 6 ms 376 KB OK (n = 100, answer = YES)
13 Correct 6 ms 376 KB OK (n = 100, answer = NO)
14 Correct 6 ms 376 KB OK (n = 100, answer = YES)
15 Correct 6 ms 376 KB OK (n = 100, answer = YES)
16 Correct 6 ms 376 KB OK (n = 100, answer = YES)
17 Correct 6 ms 376 KB OK (n = 100, answer = YES)
# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB OK (n = 1, answer = NO)
2 Correct 5 ms 376 KB OK (n = 1, answer = NO)
3 Correct 5 ms 376 KB OK (n = 1, answer = YES)
4 Correct 5 ms 376 KB OK (n = 2, answer = YES)
5 Correct 5 ms 376 KB OK (n = 2, answer = YES)
6 Correct 5 ms 376 KB OK (n = 3, answer = YES)
7 Correct 5 ms 376 KB OK (n = 3, answer = YES)
8 Correct 6 ms 376 KB OK (n = 3, answer = YES)
9 Correct 5 ms 376 KB OK (n = 3, answer = YES)
10 Correct 5 ms 380 KB OK (n = 3, answer = YES)
11 Correct 5 ms 380 KB OK (n = 3, answer = YES)
12 Correct 5 ms 376 KB OK (n = 3, answer = YES)
13 Correct 5 ms 376 KB OK (n = 3, answer = NO)
14 Correct 5 ms 376 KB OK (n = 3, answer = YES)
15 Correct 5 ms 376 KB OK (n = 3, answer = YES)
16 Correct 5 ms 376 KB OK (n = 3, answer = NO)
17 Correct 5 ms 376 KB OK (n = 3, answer = NO)
18 Correct 6 ms 376 KB OK (n = 100, answer = NO)
19 Correct 6 ms 376 KB OK (n = 100, answer = YES)
20 Correct 5 ms 380 KB OK (n = 12, answer = YES)
21 Correct 5 ms 376 KB OK (n = 12, answer = YES)
22 Correct 5 ms 376 KB OK (n = 12, answer = NO)
23 Correct 5 ms 376 KB OK (n = 12, answer = NO)
24 Correct 5 ms 376 KB OK (n = 12, answer = YES)
25 Correct 5 ms 376 KB OK (n = 12, answer = YES)
26 Correct 5 ms 376 KB OK (n = 12, answer = YES)
27 Correct 5 ms 376 KB OK (n = 12, answer = YES)
28 Correct 6 ms 504 KB OK (n = 6, answer = YES)
29 Correct 5 ms 376 KB OK (n = 12, answer = YES)
30 Correct 6 ms 376 KB OK (n = 100, answer = NO)
31 Correct 6 ms 376 KB OK (n = 100, answer = YES)
32 Correct 6 ms 376 KB OK (n = 100, answer = NO)
33 Correct 6 ms 376 KB OK (n = 100, answer = YES)
34 Correct 6 ms 376 KB OK (n = 100, answer = YES)
35 Correct 6 ms 376 KB OK (n = 100, answer = YES)
36 Correct 6 ms 376 KB OK (n = 100, answer = YES)
37 Correct 5 ms 376 KB OK (n = 28, answer = YES)
38 Correct 5 ms 376 KB OK (n = 27, answer = YES)
39 Correct 6 ms 376 KB OK (n = 90, answer = YES)
40 Correct 7 ms 376 KB OK (n = 100, answer = YES)
41 Correct 7 ms 376 KB OK (n = 100, answer = YES)
42 Correct 5 ms 376 KB OK (n = 10, answer = YES)
43 Correct 6 ms 376 KB OK (n = 100, answer = YES)
44 Correct 6 ms 376 KB OK (n = 100, answer = YES)
45 Correct 6 ms 376 KB OK (n = 100, answer = YES)
46 Correct 6 ms 376 KB OK (n = 100, answer = YES)
47 Correct 7 ms 376 KB OK (n = 100, answer = NO)
48 Correct 6 ms 376 KB OK (n = 100, answer = NO)
49 Correct 6 ms 376 KB OK (n = 100, answer = NO)
50 Correct 6 ms 376 KB OK (n = 100, answer = YES)
51 Correct 6 ms 376 KB OK (n = 100, answer = YES)
52 Correct 6 ms 376 KB OK (n = 100, answer = YES)
53 Correct 6 ms 376 KB OK (n = 100, answer = YES)
54 Correct 6 ms 376 KB OK (n = 100, answer = YES)
# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB OK (n = 1, answer = NO)
2 Correct 5 ms 376 KB OK (n = 1, answer = NO)
3 Correct 5 ms 376 KB OK (n = 1, answer = YES)
4 Correct 5 ms 376 KB OK (n = 2, answer = YES)
5 Correct 5 ms 376 KB OK (n = 2, answer = YES)
6 Correct 5 ms 376 KB OK (n = 3, answer = YES)
7 Correct 5 ms 376 KB OK (n = 3, answer = YES)
8 Correct 6 ms 376 KB OK (n = 3, answer = YES)
9 Correct 5 ms 376 KB OK (n = 3, answer = YES)
10 Correct 5 ms 380 KB OK (n = 3, answer = YES)
11 Correct 5 ms 380 KB OK (n = 3, answer = YES)
12 Correct 5 ms 376 KB OK (n = 3, answer = YES)
13 Correct 5 ms 376 KB OK (n = 3, answer = NO)
14 Correct 5 ms 376 KB OK (n = 3, answer = YES)
15 Correct 5 ms 376 KB OK (n = 3, answer = YES)
16 Correct 5 ms 376 KB OK (n = 3, answer = NO)
17 Correct 5 ms 376 KB OK (n = 3, answer = NO)
18 Correct 6 ms 376 KB OK (n = 100, answer = NO)
19 Correct 6 ms 376 KB OK (n = 100, answer = YES)
20 Correct 5 ms 380 KB OK (n = 12, answer = YES)
21 Correct 5 ms 376 KB OK (n = 12, answer = YES)
22 Correct 5 ms 376 KB OK (n = 12, answer = NO)
23 Correct 5 ms 376 KB OK (n = 12, answer = NO)
24 Correct 5 ms 376 KB OK (n = 12, answer = YES)
25 Correct 5 ms 376 KB OK (n = 12, answer = YES)
26 Correct 5 ms 376 KB OK (n = 12, answer = YES)
27 Correct 5 ms 376 KB OK (n = 12, answer = YES)
28 Correct 6 ms 504 KB OK (n = 6, answer = YES)
29 Correct 5 ms 376 KB OK (n = 12, answer = YES)
30 Correct 6 ms 376 KB OK (n = 100, answer = NO)
31 Correct 6 ms 376 KB OK (n = 100, answer = YES)
32 Correct 6 ms 376 KB OK (n = 100, answer = NO)
33 Correct 6 ms 376 KB OK (n = 100, answer = YES)
34 Correct 6 ms 376 KB OK (n = 100, answer = YES)
35 Correct 6 ms 376 KB OK (n = 100, answer = YES)
36 Correct 6 ms 376 KB OK (n = 100, answer = YES)
37 Correct 5 ms 376 KB OK (n = 28, answer = YES)
38 Correct 5 ms 376 KB OK (n = 27, answer = YES)
39 Correct 6 ms 376 KB OK (n = 90, answer = YES)
40 Correct 7 ms 376 KB OK (n = 100, answer = YES)
41 Correct 7 ms 376 KB OK (n = 100, answer = YES)
42 Correct 5 ms 376 KB OK (n = 10, answer = YES)
43 Correct 6 ms 376 KB OK (n = 100, answer = YES)
44 Correct 6 ms 376 KB OK (n = 100, answer = YES)
45 Correct 6 ms 376 KB OK (n = 100, answer = YES)
46 Correct 6 ms 376 KB OK (n = 100, answer = YES)
47 Correct 7 ms 376 KB OK (n = 100, answer = NO)
48 Correct 6 ms 376 KB OK (n = 100, answer = NO)
49 Correct 6 ms 376 KB OK (n = 100, answer = NO)
50 Correct 6 ms 376 KB OK (n = 100, answer = YES)
51 Correct 6 ms 376 KB OK (n = 100, answer = YES)
52 Correct 6 ms 376 KB OK (n = 100, answer = YES)
53 Correct 6 ms 376 KB OK (n = 100, answer = YES)
54 Correct 6 ms 376 KB OK (n = 100, answer = YES)
55 Correct 129 ms 504 KB OK (n = 10000, answer = YES)
56 Correct 132 ms 376 KB OK (n = 10000, answer = YES)
57 Correct 86 ms 376 KB OK (n = 10000, answer = YES)
58 Correct 99 ms 504 KB OK (n = 10000, answer = YES)
59 Correct 135 ms 376 KB OK (n = 10000, answer = YES)
60 Correct 88 ms 376 KB OK (n = 10000, answer = YES)
61 Correct 93 ms 376 KB OK (n = 10000, answer = NO)
62 Correct 102 ms 504 KB OK (n = 10000, answer = YES)
63 Correct 28 ms 376 KB OK (n = 10000, answer = NO)
64 Correct 133 ms 376 KB OK (n = 10000, answer = YES)
65 Correct 135 ms 504 KB OK (n = 10000, answer = YES)
66 Correct 123 ms 504 KB OK (n = 10000, answer = YES)
67 Correct 134 ms 472 KB OK (n = 10000, answer = YES)
68 Correct 137 ms 376 KB OK (n = 10000, answer = YES)
69 Correct 130 ms 376 KB OK (n = 10000, answer = YES)
70 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
71 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
72 Correct 14 ms 376 KB OK (n = 865, answer = YES)
73 Correct 13 ms 376 KB OK (n = 820, answer = YES)
# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB OK (n = 1, answer = NO)
2 Correct 5 ms 376 KB OK (n = 1, answer = NO)
3 Correct 5 ms 376 KB OK (n = 1, answer = YES)
4 Correct 5 ms 376 KB OK (n = 2, answer = YES)
5 Correct 5 ms 376 KB OK (n = 2, answer = YES)
6 Correct 5 ms 376 KB OK (n = 3, answer = YES)
7 Correct 5 ms 376 KB OK (n = 3, answer = YES)
8 Correct 6 ms 376 KB OK (n = 3, answer = YES)
9 Correct 5 ms 376 KB OK (n = 3, answer = YES)
10 Correct 5 ms 380 KB OK (n = 3, answer = YES)
11 Correct 5 ms 380 KB OK (n = 3, answer = YES)
12 Correct 5 ms 376 KB OK (n = 3, answer = YES)
13 Correct 5 ms 376 KB OK (n = 3, answer = NO)
14 Correct 5 ms 376 KB OK (n = 3, answer = YES)
15 Correct 5 ms 376 KB OK (n = 3, answer = YES)
16 Correct 5 ms 376 KB OK (n = 3, answer = NO)
17 Correct 5 ms 376 KB OK (n = 3, answer = NO)
18 Correct 6 ms 376 KB OK (n = 100, answer = NO)
19 Correct 6 ms 376 KB OK (n = 100, answer = YES)
20 Correct 5 ms 380 KB OK (n = 12, answer = YES)
21 Correct 5 ms 376 KB OK (n = 12, answer = YES)
22 Correct 5 ms 376 KB OK (n = 12, answer = NO)
23 Correct 5 ms 376 KB OK (n = 12, answer = NO)
24 Correct 5 ms 376 KB OK (n = 12, answer = YES)
25 Correct 5 ms 376 KB OK (n = 12, answer = YES)
26 Correct 5 ms 376 KB OK (n = 12, answer = YES)
27 Correct 5 ms 376 KB OK (n = 12, answer = YES)
28 Correct 6 ms 504 KB OK (n = 6, answer = YES)
29 Correct 5 ms 376 KB OK (n = 12, answer = YES)
30 Correct 6 ms 376 KB OK (n = 100, answer = NO)
31 Correct 6 ms 376 KB OK (n = 100, answer = YES)
32 Correct 6 ms 376 KB OK (n = 100, answer = NO)
33 Correct 6 ms 376 KB OK (n = 100, answer = YES)
34 Correct 6 ms 376 KB OK (n = 100, answer = YES)
35 Correct 6 ms 376 KB OK (n = 100, answer = YES)
36 Correct 6 ms 376 KB OK (n = 100, answer = YES)
37 Correct 5 ms 376 KB OK (n = 28, answer = YES)
38 Correct 5 ms 376 KB OK (n = 27, answer = YES)
39 Correct 6 ms 376 KB OK (n = 90, answer = YES)
40 Correct 7 ms 376 KB OK (n = 100, answer = YES)
41 Correct 7 ms 376 KB OK (n = 100, answer = YES)
42 Correct 5 ms 376 KB OK (n = 10, answer = YES)
43 Correct 6 ms 376 KB OK (n = 100, answer = YES)
44 Correct 6 ms 376 KB OK (n = 100, answer = YES)
45 Correct 6 ms 376 KB OK (n = 100, answer = YES)
46 Correct 6 ms 376 KB OK (n = 100, answer = YES)
47 Correct 7 ms 376 KB OK (n = 100, answer = NO)
48 Correct 6 ms 376 KB OK (n = 100, answer = NO)
49 Correct 6 ms 376 KB OK (n = 100, answer = NO)
50 Correct 6 ms 376 KB OK (n = 100, answer = YES)
51 Correct 6 ms 376 KB OK (n = 100, answer = YES)
52 Correct 6 ms 376 KB OK (n = 100, answer = YES)
53 Correct 6 ms 376 KB OK (n = 100, answer = YES)
54 Correct 6 ms 376 KB OK (n = 100, answer = YES)
55 Correct 129 ms 504 KB OK (n = 10000, answer = YES)
56 Correct 132 ms 376 KB OK (n = 10000, answer = YES)
57 Correct 86 ms 376 KB OK (n = 10000, answer = YES)
58 Correct 99 ms 504 KB OK (n = 10000, answer = YES)
59 Correct 135 ms 376 KB OK (n = 10000, answer = YES)
60 Correct 88 ms 376 KB OK (n = 10000, answer = YES)
61 Correct 93 ms 376 KB OK (n = 10000, answer = NO)
62 Correct 102 ms 504 KB OK (n = 10000, answer = YES)
63 Correct 28 ms 376 KB OK (n = 10000, answer = NO)
64 Correct 133 ms 376 KB OK (n = 10000, answer = YES)
65 Correct 135 ms 504 KB OK (n = 10000, answer = YES)
66 Correct 123 ms 504 KB OK (n = 10000, answer = YES)
67 Correct 134 ms 472 KB OK (n = 10000, answer = YES)
68 Correct 137 ms 376 KB OK (n = 10000, answer = YES)
69 Correct 130 ms 376 KB OK (n = 10000, answer = YES)
70 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
71 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
72 Correct 14 ms 376 KB OK (n = 865, answer = YES)
73 Correct 13 ms 376 KB OK (n = 820, answer = YES)
74 Runtime error 106 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
75 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB OK (n = 1, answer = NO)
2 Correct 5 ms 376 KB OK (n = 1, answer = NO)
3 Correct 5 ms 376 KB OK (n = 1, answer = YES)
4 Correct 5 ms 376 KB OK (n = 2, answer = YES)
5 Correct 5 ms 376 KB OK (n = 2, answer = YES)
6 Correct 5 ms 376 KB OK (n = 3, answer = YES)
7 Correct 5 ms 376 KB OK (n = 3, answer = YES)
8 Correct 6 ms 376 KB OK (n = 3, answer = YES)
9 Correct 5 ms 376 KB OK (n = 3, answer = YES)
10 Correct 5 ms 380 KB OK (n = 3, answer = YES)
11 Correct 5 ms 380 KB OK (n = 3, answer = YES)
12 Correct 5 ms 376 KB OK (n = 3, answer = YES)
13 Correct 5 ms 376 KB OK (n = 3, answer = NO)
14 Correct 5 ms 376 KB OK (n = 3, answer = YES)
15 Correct 5 ms 376 KB OK (n = 3, answer = YES)
16 Correct 5 ms 376 KB OK (n = 3, answer = NO)
17 Correct 5 ms 376 KB OK (n = 3, answer = NO)
18 Correct 6 ms 376 KB OK (n = 100, answer = NO)
19 Correct 6 ms 376 KB OK (n = 100, answer = YES)
20 Correct 5 ms 380 KB OK (n = 12, answer = YES)
21 Correct 5 ms 376 KB OK (n = 12, answer = YES)
22 Correct 5 ms 376 KB OK (n = 12, answer = NO)
23 Correct 5 ms 376 KB OK (n = 12, answer = NO)
24 Correct 5 ms 376 KB OK (n = 12, answer = YES)
25 Correct 5 ms 376 KB OK (n = 12, answer = YES)
26 Correct 5 ms 376 KB OK (n = 12, answer = YES)
27 Correct 5 ms 376 KB OK (n = 12, answer = YES)
28 Correct 6 ms 504 KB OK (n = 6, answer = YES)
29 Correct 5 ms 376 KB OK (n = 12, answer = YES)
30 Correct 6 ms 376 KB OK (n = 100, answer = NO)
31 Correct 6 ms 376 KB OK (n = 100, answer = YES)
32 Correct 6 ms 376 KB OK (n = 100, answer = NO)
33 Correct 6 ms 376 KB OK (n = 100, answer = YES)
34 Correct 6 ms 376 KB OK (n = 100, answer = YES)
35 Correct 6 ms 376 KB OK (n = 100, answer = YES)
36 Correct 6 ms 376 KB OK (n = 100, answer = YES)
37 Correct 5 ms 376 KB OK (n = 28, answer = YES)
38 Correct 5 ms 376 KB OK (n = 27, answer = YES)
39 Correct 6 ms 376 KB OK (n = 90, answer = YES)
40 Correct 7 ms 376 KB OK (n = 100, answer = YES)
41 Correct 7 ms 376 KB OK (n = 100, answer = YES)
42 Correct 5 ms 376 KB OK (n = 10, answer = YES)
43 Correct 6 ms 376 KB OK (n = 100, answer = YES)
44 Correct 6 ms 376 KB OK (n = 100, answer = YES)
45 Correct 6 ms 376 KB OK (n = 100, answer = YES)
46 Correct 6 ms 376 KB OK (n = 100, answer = YES)
47 Correct 7 ms 376 KB OK (n = 100, answer = NO)
48 Correct 6 ms 376 KB OK (n = 100, answer = NO)
49 Correct 6 ms 376 KB OK (n = 100, answer = NO)
50 Correct 6 ms 376 KB OK (n = 100, answer = YES)
51 Correct 6 ms 376 KB OK (n = 100, answer = YES)
52 Correct 6 ms 376 KB OK (n = 100, answer = YES)
53 Correct 6 ms 376 KB OK (n = 100, answer = YES)
54 Correct 6 ms 376 KB OK (n = 100, answer = YES)
55 Correct 129 ms 504 KB OK (n = 10000, answer = YES)
56 Correct 132 ms 376 KB OK (n = 10000, answer = YES)
57 Correct 86 ms 376 KB OK (n = 10000, answer = YES)
58 Correct 99 ms 504 KB OK (n = 10000, answer = YES)
59 Correct 135 ms 376 KB OK (n = 10000, answer = YES)
60 Correct 88 ms 376 KB OK (n = 10000, answer = YES)
61 Correct 93 ms 376 KB OK (n = 10000, answer = NO)
62 Correct 102 ms 504 KB OK (n = 10000, answer = YES)
63 Correct 28 ms 376 KB OK (n = 10000, answer = NO)
64 Correct 133 ms 376 KB OK (n = 10000, answer = YES)
65 Correct 135 ms 504 KB OK (n = 10000, answer = YES)
66 Correct 123 ms 504 KB OK (n = 10000, answer = YES)
67 Correct 134 ms 472 KB OK (n = 10000, answer = YES)
68 Correct 137 ms 376 KB OK (n = 10000, answer = YES)
69 Correct 130 ms 376 KB OK (n = 10000, answer = YES)
70 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
71 Correct 124 ms 504 KB OK (n = 10000, answer = YES)
72 Correct 14 ms 376 KB OK (n = 865, answer = YES)
73 Correct 13 ms 376 KB OK (n = 820, answer = YES)
74 Runtime error 106 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
75 Halted 0 ms 0 KB -