hackerRankSolution.js

process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

process.stdin.on('end', function () {
    input_stdin_array = input_stdin.split("\n");
    main();    
});

function readLine() {
    return input_stdin_array[input_currentline++];
}

/////////////// ignore above this line ////////////////////

function main() {
    var t = parseInt(readLine());
    for(var a0 = 0; a0 < t; a0++){
        var R_temp = readLine().split(' ');
        var R = R_temp[0];
        var C = R_temp[1];
        var G = [];
        for(var G_i = 0; G_i < R; G_i++){
           G[G_i] = readLine();
        }
        var r_temp = readLine().split(' ');
        var r = r_temp[0];
        var c = r_temp[1];
        var P = [];
        for(var P_i = 0; P_i < r; P_i++){
           P[P_i] = readLine();
        }
        search(G, P);
    }

}

function search(haystack, needle) {
    
    var firstDigit = needle[0][0];
    
    for (var i = 0; i < haystack.length - needle.length; i++) {
        for (var j = 0; j < haystack[i].length - needle[0].length; j++) {
            var digit = haystack[i][j];
            if (firstDigit === digit) {
                if (checkIfMatch(haystack, needle, i, j)) {
                    console.log('YES');
                    return;
                }
            }
        }
    }   
    console.log('NO');
}

function checkIfMatch(haystack, needle, hayRow, hayCol) {
    var needleRow = 0;
    var needleCol = 0;
    var numOfColsInNeedle = needle[0].length;
    for (var i = hayRow; i < haystack.length; i++) {
        for (var j = hayCol; j < haystack[0].length; j++) {
            if (haystack[i][j] === needle[needleRow][needleCol]) {
                if (needleCol < numOfColsInNeedle - 1) {
                    needleCol++;
                } else {
                    if(needleRow === needle.length -1 && needleCol === numOfColsInNeedle -1){
                        return true;
                    }
                    needleCol = 0;
                    needleRow++;
                    break;
                }
            } else {
                return false;
            }
        }
    }
    return true;
}