Skynet: the Virus (js)

/**
 * Auto-generated code below aims at helping you parse
 * the standard input according to the problem statement.
 **/

var inputs = readline().split(' ');
var N = parseInt(inputs[0]); // the total number of nodes in the level, including the gateways
var L = parseInt(inputs[1]); // the number of links
var E = parseInt(inputs[2]); // the number of exit gateways
var links = [];
var gates = [];
for (var i = 0; i < L; i++) {
    var inputs = readline().split(' ');
    var N1 = parseInt(inputs[0]); // N1 and N2 defines a link between these nodes
    var N2 = parseInt(inputs[1]);
    links.push([N1, N2]);
}
for (var i = 0; i < E; i++) {
    var EI = parseInt(readline()); // the index of a gateway node
    printErr(EI);
    gates.push(EI);
}

// game loop
while (true) {
    var SI = parseInt(readline()); // The index of the node on which the Skynet agent is positioned this turn
    // Write an action using print()
    // To debug: printErr('Debug messages...');
    var p=false;
    for (var i=0; i<links.length; i++)
    {
        for (var j=0; j<gates.length; j++)
        {
            if ((links[i][0]==SI && links[i][1]==gates[j])||(links[i][0]==gates[j] && links[i][1]==SI))
            {
                print(links[i][0]+" "+links[i][1]);
                links.splice(i,1);
                p=true;
            }
        }
    }
    if (!p)
    {
        for (var i=0; i<links.length; i++)
        {
            if (!p&&(links[i][0]==SI || links[i][1]==SI))
            {
                print(links[i][0]+" "+links[i][1]);
                links.splice(i,1);
                p=true;
            }
        }
    }
}