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Datatähti 2018 alku

Start:2017-10-02 00:00:00
End:2017-10-16 00:00:00
 

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CSES - Datatähti 2018 alku - Results
History
2017-10-11 17:05:397
2017-10-11 16:58:400
2017-10-11 16:56:110
2017-10-11 15:29:337
2017-10-11 15:26:177
2017-10-11 14:12:537
2017-10-11 13:21:537
2017-10-10 11:48:007
2017-10-10 11:47:060
2017-10-10 11:46:100
2017-10-10 11:45:160
2017-10-10 11:44:300
2017-10-10 11:43:210
2017-10-10 11:41:220
2017-10-10 11:39:350
2017-10-10 11:38:410
2017-10-10 11:37:490
2017-10-10 11:36:530
2017-10-10 11:33:160
2017-10-10 11:32:280
2017-10-10 11:31:300
2017-10-10 11:30:060
2017-10-10 11:28:54
Task:Bittijono
Sender:Shrike
Submission time:2017-10-11 17:05:39
Language:C++
Status:READY
Score:7

Feedback

groupverdictscore
#1ACCEPTED7
#2WRONG ANSWER0
#3TIME LIMIT EXCEEDED0
#4TIME LIMIT EXCEEDED0

Test results

testverdicttime (s)group
#1ACCEPTED0.06 / 1.001details
#2ACCEPTED0.04 / 1.001details
#3ACCEPTED0.06 / 1.001details
#4ACCEPTED0.07 / 1.001details
#5ACCEPTED0.06 / 1.001details
#6ACCEPTED0.06 / 1.001details
#7ACCEPTED0.06 / 1.001details
#8ACCEPTED0.05 / 1.001details
#9ACCEPTED0.07 / 1.001details
#10ACCEPTED0.05 / 1.001details
#11WRONG ANSWER0.07 / 1.002details
#12WRONG ANSWER0.05 / 1.002details
#13WRONG ANSWER0.06 / 1.002details
#14WRONG ANSWER0.06 / 1.002details
#15WRONG ANSWER0.07 / 1.002details
#16WRONG ANSWER0.05 / 1.002details
#17WRONG ANSWER0.05 / 1.002details
#18WRONG ANSWER0.06 / 1.002details
#19WRONG ANSWER0.05 / 1.002details
#20WRONG ANSWER0.05 / 1.002details
#21TIME LIMIT EXCEEDED-- / 1.003details
#22WRONG ANSWER0.42 / 1.003details
#23TIME LIMIT EXCEEDED-- / 1.003details
#24TIME LIMIT EXCEEDED-- / 1.003details
#25WRONG ANSWER0.06 / 1.003details
#26WRONG ANSWER0.06 / 1.003details
#27WRONG ANSWER0.38 / 1.003details
#28WRONG ANSWER0.15 / 1.003details
#29TIME LIMIT EXCEEDED-- / 1.003details
#30TIME LIMIT EXCEEDED-- / 1.003details
#31TIME LIMIT EXCEEDED-- / 1.004details
#32WRONG ANSWER0.06 / 1.004details
#33TIME LIMIT EXCEEDED-- / 1.004details
#34TIME LIMIT EXCEEDED-- / 1.004details
#35TIME LIMIT EXCEEDED-- / 1.004details
#36WRONG ANSWER0.03 / 1.004details
#37WRONG ANSWER0.07 / 1.004details
#38WRONG ANSWER0.05 / 1.004details
#39WRONG ANSWER0.05 / 1.004details
#40WRONG ANSWER0.05 / 1.004details

Compiler report

input/code.cpp: In function 'std::string answer(std::string, int)':
input/code.cpp:139:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < base.length(); i++) {
                                  ^
input/code.cpp: In function 'll nt(ll)':
input/code.cpp:106:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Code

#include <iostream>
#include <string>
#include <cmath>
#include <vector>

#define MAX_CHAR 256

using namespace std;

typedef long long ll;

ll
nt(ll n)
{
	switch(n) {

		case 0:
			return 0;
			break;
		case 1:
			return 1;
			break;
		case 2:
			return 3;
			break;
		case 3:
			return 6;
			break;
		case 4:
			return 11;
			break;
		case 5:
			return 19;
			break;
		case 6:
			return 32;
			break;
		case 7:
			return 53;
			break;
		case 8:
			return 87;
			break;
		case 9:
			return 142;
			break;
		case 10:
			return 231;
			break;
		case 11:
			return 375;
			break;
		case 12:
			return 608;
			break;
		case 13:
			return 985;
			break;
		case 14:
			return 1595;
			break;
		case 15:
			return 2582;
			break;
		case 16:
			return 4179;
			break;
		case 17:
			return 6763;
			break;
		case 18:
			return 10944;
			break;
		case 19:
			return 17709;
			break;
		case 20:
			return 28655;
			break;
		case 21:
			return 46366;
			break;
		case 22:
			return 75023;
			break;
		case 23:
			return 121391;
			break;
		case 24:
			return 196416;
			break;
		case 25:
			return 317809;
			break;
		case 26:
			return 514227;
			break;
		case 27:
			return 832038;
			break;
		case 28:
			return 1346267;
			break;
	}

}

char
flip(char c) {
	if (c == '1')
		return '0';
	return '1';
}

ll
pts(string str)
{
    vector<int> last(MAX_CHAR, -1);
 
    int n = str.length();
    int dp[n+1];
    dp[0] = 1;
    for (int i=1; i<=n; i++)
    {
        dp[i] = 2*dp[i-1];
        if (last[str[i-1]] != -1)
            dp[i] = dp[i] - dp[last[str[i-1]]];
        last[str[i-1]] = (i-1);
    }
 
    return dp[n]-1;
}

string
answer(string base, int pt)
{
	int lastflip;
	lastflip = 0;
	for (int i = 0; i < base.length(); i++) {
		if (pts(base) == pt)
			return base;
		string nbs = base;
		nbs.at(i) = '0';
		/* nbs.at(i) = flip(nbs.at(i)); */
		if (pts(nbs) == pt)
			return nbs;
		if (pts(nbs) < pts(base)) {
			nbs.at(lastflip) = '1';
			nbs.at(i) = '1';
			/* nbs.at(lastflip) = flip(nbs.at(lastflip)); */
			if (pts(nbs) == pt)
				return nbs;
			else if(nbs == base)
				return "";
			lastflip = i;
			i--;
		}
		base = nbs;
	}
	return "";
}

	
int
main(int argc, char **argv)
{
	int n, k;
	cin >> n;
	for (k = 0; k < 29; k++) {
		if (n < nt(k) || n == nt(k))
			break;
	}
	for (int i = k; k < 28; i++) {
		string str = string(i, '1');
		string nbs = str;
		nbs.at(0) = '0';
		if (pts(str) < n && pts(nbs) > n)
			continue;
		str = answer(str, n);
		if (str.length() > 0) {
			cout << str << endl;
			return 0;
		}
	}
	return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
1
view   save

correct output
1
view   save

user output
1
view   save

Test 2

Group: 1

Verdict: ACCEPTED

input
2
view   save

correct output
11
view   save

user output
11
view   save

Test 3

Group: 1

Verdict: ACCEPTED

input
3
view   save

correct output
10
view   save

user output
01
view   save

Test 4

Group: 1

Verdict: ACCEPTED

input
4
view   save

correct output
1111
view   save

user output
1111
view   save

Test 5

Group: 1

Verdict: ACCEPTED

input
5
view   save

correct output
110
view   save

user output
011
view   save

Test 6

Group: 1

Verdict: ACCEPTED

input
6
view   save

correct output
101
view   save

user output
101
view   save

Test 7

Group: 1

Verdict: ACCEPTED

input
7
view   save

correct output
1110
view   save

user output
0111
view   save

Test 8

Group: 1

Verdict: ACCEPTED

input
8
view   save

correct output
1100
view   save

user output
0011
view   save

Test 9

Group: 1

Verdict: ACCEPTED

input
9
view   save

correct output
1101
view   save

user output
1011
view   save

Test 10

Group: 1

Verdict: ACCEPTED

input
10
view   save

correct output
1001
view   save

user output
1001
view   save

Test 11

Group: 2

Verdict: WRONG ANSWER

input
38
view   save

correct output
1101011
view   save

user output
00111111111111
view   save

Test 12

Group: 2

Verdict: WRONG ANSWER

input
13
view   save

correct output
11011
view   save

user output
0111111
view   save

Test 13

Group: 2

Verdict: WRONG ANSWER

input
90
view   save

correct output
111001010
view   save

user output
1000000011111
view   save

Test 14

Group: 2

Verdict: WRONG ANSWER

input
25
view   save

correct output
110010
view   save

user output
0111111111111
view   save

Test 15

Group: 2

Verdict: WRONG ANSWER

input
82
view   save

correct output
111001101
view   save

user output
111111111111111111111111111111...
view   save

Test 16

Group: 2

Verdict: WRONG ANSWER

input
94
view   save

correct output
1100011110
view   save

user output
0000111111111111111111
view   save

Test 17

Group: 2

Verdict: WRONG ANSWER

input
100
view   save

correct output
1111001001
view   save

user output
111111111111111111111111111111...
view   save

Test 18

Group: 2

Verdict: WRONG ANSWER

input
99
view   save

correct output
110010010
view   save

user output
000000000111111111
view   save

Test 19

Group: 2

Verdict: WRONG ANSWER

input
98
view   save

correct output
110110010
view   save

user output
000000001111111111
view   save

Test 20

Group: 2

Verdict: WRONG ANSWER

input
92
view   save

correct output
100110001
view   save

user output
001111111111111111111111111111...
view   save

Test 21

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
1666
view   save

correct output
101101100100101
view   save

user output
(no output)
view   save

Test 22

Group: 3

Verdict: WRONG ANSWER

input
897
view   save

correct output
11101001101010
view   save

user output
011111111111111111111111111111...
view   save

Test 23

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
4466
view   save

correct output
111101010110100101
view   save

user output
(no output)
view   save

Test 24

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
4240
view   save

correct output
11011001011010101
view   save

user output
(no output)
view   save

Test 25

Group: 3

Verdict: WRONG ANSWER

input
3089
view   save

correct output
1011001010100101
view   save

user output
000000000000000000000000000001...
view   save

Test 26

Group: 3

Verdict: WRONG ANSWER

input
4697
view   save

correct output
11010101101010110
view   save

user output
000000000000000000000000000000...
view   save

Test 27

Group: 3

Verdict: WRONG ANSWER

input
4608
view   save

correct output
11010110101001010
view   save

user output
000000000011111111111111111111...
view   save

Test 28

Group: 3

Verdict: WRONG ANSWER

input
4625
view   save

correct output
111011001100101001
view   save

user output
000000000000000001111111111111...
view   save

Test 29

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
4611
view   save

correct output
11010101010101100
view   save

user output
(no output)
view   save

Test 30

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
4917
view   save

correct output
10110100101010110
view   save

user output
(no output)
view   save

Test 31

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
178555
view   save

correct output
1011010110110101010110110
view   save

user output
(no output)
view   save

Test 32

Group: 4

Verdict: WRONG ANSWER

input
864856
view   save

correct output
10111010110110100100101010010
view   save

user output
(no output)
view   save

Test 33

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
112146
view   save

correct output
1101110101011001100100110
view   save

user output
(no output)
view   save

Test 34

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
741124
view   save

correct output
1011010011010101100101011010
view   save

user output
(no output)
view   save

Test 35

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
511902
view   save

correct output
1011010100011010100101001110
view   save

user output
(no output)
view   save

Test 36

Group: 4

Verdict: WRONG ANSWER

input
920019
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correct output
11100100101101010101001101010
view   save

user output
(no output)
view   save

Test 37

Group: 4

Verdict: WRONG ANSWER

input
933943
view   save

correct output
10101011010100100110100111001
view   save

user output
(no output)
view   save

Test 38

Group: 4

Verdict: WRONG ANSWER

input
973410
view   save

correct output
1011010101011010101010101001
view   save

user output
(no output)
view   save

Test 39

Group: 4

Verdict: WRONG ANSWER

input
954943
view   save

correct output
10110110010011010100100110101
view   save

user output
(no output)
view   save

Test 40

Group: 4

Verdict: WRONG ANSWER

input
911674
view   save

correct output
1010110010110101010101010110
view   save

user output
(no output)
view   save