Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Programming Articles
Page 1345 of 2547
Intersection of Two Arrays in C++
Suppose we have two arrays; we have to find their intersections.So, if the input is like [1, 5, 3, 6, 9], [2, 8, 9, 6, 7], then the output will be [9, 6]To solve this, we will follow these steps −Define two maps mp1, mp2Define an array resfor x in nums1(increase mp1[x] by 1)for x in nums2(increase mp2[x] by 1)for each key-value pair x in mp1cnt := 0cnt := minimum of value of x and mp2[key of x]if cnt > 0, then −insert key of x at the end of resreturn resExample Let us see the following implementation to get a ...
Read MoreMaximum size of sub-array that satisfies the given condition in C++
In this tutorial, we will be discussing a program to find maximum size of sub-array that satisfies the given condition.For this we will be provided with an array of integers. Our task is to find the maximum length subset of that array satisfying either of arr[k] > arr[k + 1] when k is odd and arr[k] < arr[k + 1] when k is even, arr[k] > arr[k + 1] when k is even and arr[k] < arr[k + 1] when k is odd.Example#include using namespace std; //comparing values of a and b int cmp(int a, int b) { return ...
Read MoreGuess Number Higher or Lower in C++
Suppose we are playing the Guess Game. The properties of this game is as follows −Player 1 will pick a number from 1 to n. player2 have to guess which number I picked. Every time player2 guess wrong, player1 will tell player2 whether the number is higher or lower.We can use the function guess(num) which will return 3 possible results as follows −-1 − Player1's number is lower1 − Player1's number is higher0 − Number is matchedSo, if the input is like n = 10, pick = 5, then the output will be 5.To solve this, we will follow these ...
Read MoreSum of Distances in Tree in C++
Suppose we have one undirected, connected tree where N nodes are present. These are labelled as 0...N-1 and N-1 edges are given. The ith edge connects nodes edges[i][0] and edges[i][1] together. We have to find a list where ans[i] is the sum of the distances between node i and all other nodes.So, if the input is like N = 6 and edges = [(0, 1), (0, 2), (2, 3), (2, 4), (2, 5)], then the output will be [8, 12, 6, 10, 10, 10]To solve this, we will follow these steps −Define a function dfs1(), this will take node, parent, ...
Read MoreMaximum size rectangle binary sub-matrix with all 1s in C++
In this tutorial, we will be discussing a program to find maximum size rectangle binary sub-matrix with all 1s.For this we will be provided with 2D matrix containing zeroes and ones. Our task is to find the largest 2D matrix subset containing only ones.Example#include using namespace std; #define R 4 #define C 4 //finding the maximum area int maxHist(int row[]) { stack result; int top_val; int max_area = 0; int area = 0; int i = 0; while (i < C) { if (result.empty() || row[result.top()]
Read MoreSimilar String Groups in C++
Suppose we have two strings X and Y, these are similar if we can swap two letters of X, so that it equals Y. Also two the strings X and Y are similar if they are equal. As an example, consider, two strings are like "tars" and "rats" are similar, if we swap t and r, then we can find another, now "rats" and "arts" are similar, but "star" is not similar to "tars", "rats", or "arts". Now we can see, these form two connected groups by similarity: {"tars", "rats", "arts"} and {"star"}. Here "tars" and "arts" are in the ...
Read MoreFind the Difference in C++
Suppose we have two strings s and t which consist of only lowercase letters. Now, string t is generated by random shuffling string s and then add one more letter at a random index. We have to find the letter that was added in t.So, if the input is like "mnopq", "pqmnot", then the output will be "t", this is the extra letter.To solve this, we will follow these steps −sSum := 0, tSum := 0for initialize i := 0, when i < call length() of s, update (increase i by 1), do −sSum := sSum + s[i]for initialize j ...
Read MoreShortest Path Visiting All Nodes in C++
Suppose we have one undirected, connected graph with N nodes these nodes are labeled as 0, 1, 2, ..., N-1. graph length will be N, and j is not same as i is in the list graph[i] exactly once, if and only if nodes i and j are connected. We have to find the length of the shortest path that visits every node. We can start and stop at any node, we can revisit nodes multiple times, and we can reuse edges.So, if the input is like [[1], [0, 2, 4], [1, 3, 4], [2], [1, 2]], then the output ...
Read MoreConvert a Number to Hexadecimal in C++
Suppose we have an integer; we have to devise an algorithm to convert it to hexadecimal. For negative numbers we will use the two’s complement method.So, if the input is like 254 and -12, then the output will be fe and fffffff4 respectively.To solve this, we will follow these steps −if num1 is same as 0, then −return "0"num := num1s := blank stringwhile num is non-zero, do −temp := num mod 16if temp
Read MoreK-Similar Strings in C++
Suppose we have two strings A and B. These two strings are K-similar (where K is one nonnegative integer) if we can swap the positions of two letters in A exactly K times so that the resulting string is B. So, we have two anagrams A and B, we have to find the smallest K for which A and B are K-similar.So, if the input is like A = "abc", B = "bac", then the output will be 2.To solve this, we will follow these steps −Define a function swapp(), this will take string s, i, j, x := s[i], ...
Read More