# HackerRank in a String! in Algorithm | HackerRank Programming Solutions | HackerRank Problem Solving Solutions in Java [💯Correct]

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#### Introduction To Algorithm

The word Algorithm means “a process or set of rules to be followed in calculations or other problem-solving operations”. Therefore Algorithm refers to a set of rules/instructions that step-by-step define how a work is to be executed upon in order to get the expected results.

• It is easy to understand.
• Algorithm is a step-wise representation of a solution to a given problem.
• In Algorithm the problem is broken down into smaller pieces or steps hence, it is easier for the programmer to convert it into an actual program.

Link for the ProblemHackerRank in a String! – Hacker Rank Solution

`HackerRank in a String! – Hacker Rank Solution`

### Problem:

We say that a string contains the word `hackerrank` if a subsequence of its characters spell the word `hackerrank`. Remeber that a subsequence maintains the order of characters selected from a sequence.

More formally, let  be the respective indices of `h``a``c``k``e``r``r``a``n``k` in string . If  is true, then  contains `hackerrank`.

For each query, print `YES` on a new line if the string contains `hackerrank`, otherwise, print `NO`.

Example

This contains a subsequence of all of the characters in the proper order. Answer `YES`

This is missing the second ‘r’. Answer `NO`.

There is no ‘c’ after the first occurrence of an ‘a’, so answer `NO`.

Function Description

Complete the hackerrankInString function in the editor below.

hackerrankInString has the following parameter(s):

• string s: a string

Returns

• string: `YES` or `NO`

Input Format

The first line contains an integer , the number of queries.
Each of the next  lines contains a single query string .

Constraints

Sample Input 0

```2
hereiamstackerrank
hackerworld
```

Sample Output 0

```YES
NO
```

Explanation 0

We perform the following  queries:

1. The characters of `hackerrank` are bolded in the string above. Because the string contains all the characters in `hackerrank` in the same exact order as they appear in `hackerrank`, we return `YES`.
2.  does not contain the last three characters of `hackerrank`, so we return `NO`.

Sample Input 1

```2
hhaacckkekraraannk
rhbaasdndfsdskgbfefdbrsdfhuyatrjtcrtyytktjjt
```

Sample Output 1

```YES
NO```
`HackerRank in a String! – Hacker Rank Solution`
```import java.util.Scanner;
public class LCS {
public static void main(String[] args) throws Exception {
Scanner scan = new Scanner(System.in);
int q = scan.nextInt();
while (q-- > 0) {
String s1 = scan.next();
String s2 = "hackerrank";
int m = s1.length();
int n = s2.length();
char a[] = s1.toCharArray();
char b[] = s2.toCharArray();
int c[][] = new int[n + 1][m + 1];
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
if (b[i - 1] == a[j - 1]) {
c[i][j] = c[i - 1][j - 1] + 1;
} else {
c[i][j] = Math.max(c[i - 1][j], c[i][j - 1]);
}
}
}
int count = c[n][m];
if(count == n) {
System.out.println("YES");
} else {
System.out.println("NO");
}
}
}
}```  