Pointer-6

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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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Islands

  An island is a small piece of land surrounded by water . A group of islands is said to be connected if we can reach from any given island to any other island in the same group . Given V islands (numbered from 0 to V-1) and E connections or edges between islands. Can you count the number of connected groups of islands. 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 : Print the count the number of connected groups of islands 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: 5 8 0 1 0 4 1 2 2 0 2 4 3 0 3 2 4 3 Sample Output 1: 1 #include < iostream > using namespace std ; int main () { // Write your code here }
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