Program to check if the points are parallel to X axis or Y axis - GeeksforGeeks

22 Mar, 2022
Given n points, we need to check if these n points are parallel to X axis or Y axis or to No axis.
Examples:  
Input : x[] = {0, 0, 0, 0, 0|
        y[] = {9, 2, 1, 3, 4}
Output : Parallel to Y Axis

Input : x[] = {1, 2, 3|
        y[] = {9, 2, 1}
Output : Not Parallel to X or Y Axis
Approach
To find the points parallel to X or Y axis just check if the points are same for any axis or not. If all the points on X axis are same then the line is parallel to Y axis. If all the points on Y axis are same so the line is parallel to X axis. If none of the cases is true, then it is not parallel to any axis. Input the value N. And then Input the value of points in a  
C++
Java
Python3
C#
PHP
Javascript
// CPP program to check for parallel// to X and Y Axis#include <bits/stdc++.h>using namespace std; // To check for parallel linevoid parallel(int n, int a[][2]){    bool x = true, y = true;     // checking for parallel to X and Y    // axis condition    for (int i = 0; i < n - 1; i++) {        if (a[i][0] != a[i + 1][0])            x = false;        if (a[i][1] != a[i + 1][1])            y = false;    }     // To display the output    if (x)        cout << "parallel to Y Axis" << endl;    else if (y)        cout << "parallel to X Axis" << endl;    else        cout << "Not parallel to X"             << " and Y Axis" << endl;} // Driver's Codeint main(){    int a[][2] = { { 1, 2 },                   { 1, 4 },                   { 1, 6 },                   { 1, 0 } };     int n = sizeof(a) / sizeof(a[0]);    parallel(n, a);    return 0;}
// Java program to illustrate..// To check for parallel// To X and Y Axis import java.io.*;import java.util.*; class GFG {     // To check for parallel line    static void parallel(int a[][])    {        boolean x = true, y = true;         // checking for parallel to X and Y        // axis condition        for (int i = 0; i < a.length - 1; i++) {            if (a[i][0] != a[i + 1][0])                x = false;            if (a[i][1] != a[i + 1][1])                y = false;        }         // To display the output        if (x)            System.out.println("Parallel to Y Axis");        else if (y)            System.out.println("Parallel to X Axis");        else            System.out.println("Not parallel to X"                               + " and Y axis");    }     public static void main(String[] args)    {        int a[][] = { { 1, 2 },                      { 1, 4 },                      { 1, 6 },                      { 1, 0 } };        parallel(a);    }}
# Python3 program to check for parallel# to X and Y Axis # To check for parallel linedef parallel(n, a):    x = True;    y = True;     # checking for parallel    # to X and Y axis condition    for i in range(n - 1):            if (a[i][0] != a[i + 1][0]):                x = False;            if (a[i][1] != a[i + 1][1]):                y = False;     # To display the output    if (x):        print("Parallel to Y Axis");    elif (y):        print("Parallel to X Axis");    else:        print("Not Parallel to X and Y Axis"); # Driver's Codea = [[1, 2], [1, 4],     [1, 6], [1, 0]]; n = len(a);parallel(n, a); # This code is contributed by mits
// C# program to illustrate..// To check for parallel// To X and Y Axis class GFG {     // To check for parallel line    static void parallel(int[, ] a)    {        bool x = true, y = true;         // checking for parallel to X and Y        // axis condition        for (int i = 0; i < a.Rank - 1; i++) {            if (a[i, 0] != a[i + 1, 0])                x = false;            if (a[i, 1] != a[i + 1, 1])                y = false;        }         // To display the output        if (x)            System.Console.WriteLine("Parallel to Y Axis");        else if (y)            System.Console.WriteLine("Parallel to X Axis");        else            System.Console.WriteLine("Not parallel to X"                                     + " and Y axis");    }     public static void Main()    {        int[, ] a = { { 1, 2 },                      { 1, 4 },                      { 1, 6 },                      { 1, 0 } };        parallel(a);    }}// This code is contributed by mits
<?php// PHP program to check for parallel// to X and Y Axis // To check for parallel linefunction parallel($n, $a){    $x = true; $y = true;     // checking for parallel    // to X and Y axis condition    for ($i = 0; $i < $n - 1; $i++)    {            if ($a[$i][0] != $a[$i + 1][0])                $x = false;            if ($a[$i][1] != $a[$i + 1][1])                $y = false;    }     // To display the output    if ($x)        echo "parallel to Y Axis" ;    else if (y)        echo "parallel to X Axis" ;    else        echo "Not parallel to X", " and Y Axis";}     // Driver's Code    $a = array(array(1, 2),               array(1, 4),               array(1, 6),               array(1, 0));     $n = count($a);    parallel($n, $a); //This code is contributed by anuj_67?>
<script> // Javascript program to check for parallel// to X and Y Axis // To check for parallel linefunction parallel(n, a){    let x = true, y = true;         // Checking for parallel to X and Y    // axis condition    for(let i = 0; i < n - 1; i++)    {        if (a[i][0] != a[i + 1][0])            x = false;        if (a[i][1] != a[i + 1][1])            y = false;    }     // To display the output    if (x)        document.write("parallel to Y Axis" + "</br>");    else if (y)        document.write("parallel to X Axis" + "</br>");    else        document.write("Not parallel to X" +                       " and Y Axis" + "</br>");} // Driver codelet a = [ [ 1, 2 ],          [ 1, 4 ],          [ 1, 6 ],          [ 1, 0 ] ];let n = a.length; parallel(n, a); // This code is contributed by jana_sayantan     </script>
Parallel to Y Axis
 
Time Complexity: O(n)
Auxiliary Space: O(1)
vt_m
Mithun Kumar
shilpiaggarwal25
jana_sayantan
rohitkumarsinghcna
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Mathematical
School Programming
Mathematical
Geometric
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