(5/5)

# Consider the following code and answer the questions (below) on a separate piece of paper.

INSTRUCTIONS TO CANDIDATES

 Complexity Analysis Practice 2 A

 Consider the following code and answer the questions (below) on a separate piece of paper.

 /** What does this program do? */

public static boolean bar(int [] numList) { for(int i = 0; i < numList.length - 1; i++) {

for(int j = i + 1; j < numList.length; j++){ if (numList[i] == numList[j]){

return false;

}

}

}

return true;

}

1.      If the input numList = {4, 5, 4} give the step-by-step execution of this code.

2.      Label each line of code with the time complexity cost of that line.

3.      Give a final complexity analysis of this code.

4.      Give the Big-O notation time complexity of this code.

public static int mystery(HashMap<String, Integer> map){ int m = 0;

for(String str : map.keySet()){ if (map.get(str) > m){

m = map.get(str);

}

}

return m;

}

1.      If the input map = {“hello”: 4, “goodbye”: 3, “ship”, 21} give the step-by- step execution of this code.

2.      Label each line of code with the time complexity cost of that line.

3.      Give a final complexity analysis of this code.

4.      Give the Big-O notation time complexity of this code.

(5/5)

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