Array Of Scores - Return True If Each Score Is Equal Or Greater Than One Before

Mar 8, 2014

Given an array of scores, return true if each score is equal or greater than the one before. The array will be length 2 or more.

scoresIncreasing({1, 3, 4}) → true
scoresIncreasing({1, 3, 2}) → false
scoresIncreasing({1, 1, 4}) → true

Java Code:

public boolean scoresIncreasing(int[] scores)
{
for (int i = 0; i< scores.length-1; i++) {
if (scores[i] < scores[i+1] || scores[i] == scores [i+1]) {
return true;
} else {
return false;
}
}
return false;
}

Unsure what the problem is, it will always return True for some reason...

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Return True If Array Contains 3 Adjacent Scores That Differ From Each Other

Mar 12, 2014

Assignment: Given an array of scores sorted in increasing order, return true if the array contains 3 adjacent scores that differ from each other by at most 2, such as with {3, 4, 5} or {3, 5, 5}.

scoresClump({3, 4, 5}) → true
scoresClump({3, 4, 6}) → false
scoresClump({1, 3, 5, 5}) → true

Codingbat AP-1 3rd question

public boolean scoresClump(int[] scores) { 
for (int i = 0; i < scores.length; i++) {
int a = scores[i];
int b = scores[i + 1];
int c = scores[i + 2];
if (Math.abs(b-a) + Math.abs (c-b) <=2)
return true;
}
return false;
}

I got it right for some of the input, but not one of them. I tried to use the for loop and if statement on a specific input that I got wrong:

{4, 5, 8}
scores[1] - scores[0] = 1
scores[2] - scores[1] = 3

I suspect it has something to do with the for loop, but I don't see the problem with it. It should work, shouldn't it?
But anyway, here is the error for {4,5,8} :

Exception:java.lang.ArrayIndexOutOfBoundsException : 3 (line number:7)

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I have started with:

Java Code:

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//n is the number of elements in the array.
//Base case:
if (n == 1 && n >= 100) return A[0];
//Recurse
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} mh_sh_highlight_all('java');

I don't think this actually does the trick.

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[Code] ....

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[Code] ....

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