Alice and Bob each created one problem for HackerRank. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty.
The rating for Alice's challenge is the triplet a = (a[0], a[1], a[2]), and the rating for Bob's challenge is the triplet b = (b[0], b[1], b[2]).
The task is to find their comparison points by comparing a[0] with b[0], a[1] with b[1], and a[2] with b[2].
If a[i] > b[i], then Alice is awarded 1 point. If a[i] < b[i], then Bob is awarded 1 point. If a[i] = b[i], then neither person receives a point. Comparison points is the total points a person earned.
Given a and b, determine their respective comparison points.
Example
a = [1, 2, 3] b = [3, 2, 1] For elements 0, Bob is awarded a point because a[0] . For the equal elements a[1] and b[1], no points are earned. Finally, for elements 2, a[2] > b[2] so Alice receives a point. The return array is [1, 1] with Alice's score first and Bob's second.
Function Description
Complete the function compareTriplets in the editor below.
compareTriplets has the following parameter(s):
int a[3]: Alice's challenge rating int b[3]: Bob's challenge rating Return
int[2]: Alice's score is in the first position, and Bob's score is in the second. Input Format
The first line contains 3 space-separated integers, a[0], a[1], and a[2], the respective values in triplet a. The second line contains 3 space-separated integers, b[0], b[1], and b[2], the respective values in triplet b.
Constraints
1 ≤ a[i] ≤ 100 1 ≤ b[i] ≤ 100 Sample Input 0
5 6 7 3 6 10 Sample Output 0
1 1 Explanation 0
In this example:
Now, let's compare each individual score:
, so Alice receives point. , so nobody receives a point. , so Bob receives point. Alice's comparison score is , and Bob's comparison score is . Thus, we return the array .
Sample Input 1
17 28 30 99 16 8 Sample Output 1
2 1 Explanation 1
Comparing the elements, so Bob receives a point. Comparing the and elements, and so Alice receives two points. The return array is .
Given a square matrix, calculate the absolute difference between the sums of its diagonals.
For example, the square matrix is shown below:
1 2 3
4 5 6
9 8 9
The left-to-right diagonal = . The right to left diagonal = . Their absolute difference is .
Complete the function in the editor below.
diagonalDifference takes the following parameter:
int arr[n][m]: an array of integers Return
int: the absolute diagonal difference Input Format
The first line contains a single integer, , the number of rows and columns in the square matrix . Each of the next lines describes a row, , and consists of space-separated integers .
Return the absolute difference between the sums of the matrix's two diagonals as a single integer.
Sample Input
3
11 2 4
4 5 6
10 8 -12
Sample Output
15
The primary diagonal is:
11 5 -12 Sum across the primary diagonal: 11 + 5 - 12 = 4
The secondary diagonal is:
4
5 10 Sum across the secondary diagonal: 4 + 5 + 10 = 19 Difference: |4 - 19| = 15
Note: |x| is the absolute value of x
Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with places after the decimal.
Note: This challenge introduces precision problems. The test cases are scaled to six decimal places, though answers with absolute error of up to are acceptable.
Example
There are elements, two positive, two negative and one zero. Their ratios are , and . Results are printed as:
0.400000 0.400000 0.200000 Function Description
Complete the plusMinus function in the editor below.
plusMinus has the following parameter(s):
int arr[n]: an array of integers Print Print the ratios of positive, negative and zero values in the array. Each value should be printed on a separate line with digits after the decimal. The function should not return a value.
Input Format
The first line contains an integer, , the size of the array. The second line contains space-separated integers that describe .
Constraints
Output Format
Print the following lines, each to decimals:
proportion of positive values proportion of negative values proportion of zeros Sample Input
6
-4 3 -9 0 4 1
Sample Output
0.500000 0.333333 0.166667 Explanation
There are positive numbers, negative numbers, and zero in the array. The proportions of occurrence are positive: , negative: and zeros: .
This is a staircase of size :
#
##
###
####
Its base and height are both equal to . It is drawn using # symbols and spaces. The last line is not preceded by any spaces.
Write a program that prints a staircase of size .
Complete the staircase function in the editor below.
staircase has the following parameter(s):
int n: an integer Print
Print a staircase as described above.
Input Format
A single integer, , denoting the size of the staircase.
Constraints
0 < x < 100
Output Format
Print a staircase of size using # symbols and spaces.
Note: The last line must have spaces in it.
Sample Input
6 Sample Output
#
##
/ ###
/ ####
/ #####
/ ######
The staircase is right-aligned, composed of # symbols and spaces, and has a height and width of .
Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the five integers. Then print the respective minimum and maximum values as a single line of two space-separated long integers.
Example
The minimum sum is and the maximum sum is . The function prints
16 24 Function Description
Complete the miniMaxSum function in the editor below.
miniMaxSum has the following parameter(s):
arr: an array of integers Print
Print two space-separated integers on one line: the minimum sum and the maximum sum of of elements.
Input Format
A single line of five space-separated integers.
Constraints
Output Format
Print two space-separated long integers denoting the respective minimum and maximum values that can be calculated by summing exactly four of the five integers. (The output can be greater than a 32 bit integer.)
Sample Input
1 2 3 4 5 Sample Output
10 14 Explanation
The numbers are , , , , and . Calculate the following sums using four of the five integers:
Sum everything except , the sum is . Sum everything except , the sum is . Sum everything except , the sum is . Sum everything except , the sum is . Sum everything except , the sum is . Hints: Beware of integer overflow! Use 64-bit Integer.
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