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Hacker Rank: Day 6: Let's Review
Hacker Rank: Day 6: Let's Review
Task
Given a string,S, of length N that is indexed from 0 to N-1, print its even-indexed
and odd-indexed characters as 2 space-separated
strings on a single line (see the Sample below for more detail).
Note: 0 is considered to be an even index.
Example
s = abdecf
Print abc def
Input Format
The first line contains an integer, T(the number of test cases).
Each line i of the T subsequent lines contain a string,S.
Constraints
1 <= T <=10
2 <= Length of S <= 10000
Output Format
For each String Sj(where 0<=j<=T-1), print Sj's even-indexed characters,
followed by a space, followed by Sj's odd-indexed characters.
Sample Input
2
Hacker
Rank
Sample Output
Hce akr
Rn ak
Explanation
Test Case 0: S = "Hacker"
S[0] = "H"
S[1] = "a"
S[2] = "c"
S[3] = "k"
S[4] = "e"
S[5] = "r"
The even indices are 0,2 and 4, and the odd indices are 1, 2, and 5.
We then print a single line of 2 space-separated strings;
the first string contains the ordered characters from S's even indices (Hce), and the
second string contains the ordered characters from S's odd indices (akr).
Test Case 1:
S = "Rank"
S[0] = "R"
S[1] = "a"
S[2] = "n"
S[3] = "k"
The even indices are 0 and 2, and the odd indices are 1 and 3.
We then print a single line of 2 space-separated strings;
the first string contains the ordered characters from S's even indices (Rn), and the
second string contains the ordered characters from S's odd indices (ak).
PHP Solutions:
$_fp = fopen("php://stdin", "r");
/* Enter your code here. Read input from STDIN. Print output to STDOUT */
fscanf($_fp, "%d\n", $n);
$r = 0;
while($r < $n){
fscanf($_fp, "%s\n", $string);
$strLen = strlen($string);
$evenStr = $oddStr = '';
for($i=0;$i<$strLen;$i++){
if($i%2==0){
$evenStr.= $string[$i];
}else{
$oddStr.= $string[$i];
}
}
print $evenStr.' '.$oddStr."\n";
$r++;
}
fclose($_fp);
Tags : hackerRank, Nodejs, PHP,
Views : 1126
