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Find a Node in Linked List

Find a Node in Linked List Send Feedback You have been given a singly linked list of integers. Write a function that returns the index/position of integer data denoted by 'N' (if it exists). Return -1 otherwise. Note : Assume that the Indexing for the singly linked list always starts from 0. Input format : The first line contains an Integer 'T' which denotes the number of test cases. The first line of each test case or query contains the elements of the singly linked list separated by a single space. The second line contains the integer value 'N'. It denotes the data to be searched in the given singly linked list. Remember/Consider : While specifying the list elements for input, -1 indicates the end of the singly linked list and hence -1 would never be a list element. Output format : For each test case, return the index/position of 'N' in the singly linked list. Return -1, otherwise. Output for every test case will be printed in a separate line. Not...
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Code : Is Connected ?

  Given an undirected graph G(V,E), check if the graph G is connected graph or not. Note: 1. V is the number of vertices present in graph G and vertices are numbered from 0 to V-1. 2. E is the number of edges present in graph G. Input Format : The first line of input contains two integers, that denote the value of V and E. Each of the following E lines contains two integers, that denote that there exists an edge between vertex a and b. Output Format : The first and only line of output contains "true" if the given graph is connected or "false", otherwise. Constraints : 0 <= V <= 1000 0 <= E <= (V * (V - 1)) / 2 0 <= a <= V - 1 0 <= b <= V - 1 Time Limit: 1 second Sample Input 1: 4 4 0 1 0 3 1 2 2 3 Sample Output 1: true Sample Input 2: 4 3 0 1 1 3 0 3 Sample Output 2: false Sample Output 2 Explanation The graph is not connected, even though vertices 0,1 and 3 are connected to each other but there isn’t any path from vertices 0,1,3 to vertex...
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Coding Ninjas

  Given a NxM matrix containing Uppercase English Alphabets only. Your task is to tell if there is a path in the given matrix which makes the sentence “CODINGNINJA” . There is a path from any cell to all its neighbouring cells. For a particular cell, neighbouring cells are those cells that share an edge or a corner with the cell. Input Format : The first line of input contains two space separated integers N and M, where N is number of rows and M is the number of columns in the matrix. Each of the following N lines contain M characters. Please note that characters are not space separated. Output Format : Print 1 if there is a path which makes the sentence “CODINGNINJA” else print 0. Constraints : 1 <= N <= 1000 1 <= M <= 1000 Time Limit: 1 second Sample Input 1: 2 11 CXDXNXNXNXA XOXIXGXIXJX Sample Output 1: 1 bool hasPath ( vector < vector < char >> & board , int n , int m ) { // Write your code here. } #include < iostream > #include ...
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