poh05_4.js

var readline = require('readline').createInterface(process.stdin, process.stdout);
var inputs = [];

function BombApplication(inputs) {
    var appProperties = inputs.splice(0, 1).toString().split(' ');

    this.lineNum = +appProperties[0];
    this.lineLength = +appProperties[1];
    this.lines = [];

    for (var i = 0; i < this.lineNum; i++) {
        this.lines.push([]);
    }

    while (inputs.length !== 0) {
        var lineSplit = inputs.splice(0, 1).toString().split(' ');

        this.lines.forEach(function (line, index) {
            line.push(lineSplit[index]);
        });
    }
}

BombApplication.prototype.doExplosion = function () {
    var lineLength = this.lineLength;

    var shiftBombs = function (line, current) {
        for (var tmpCurrent = current; tmpCurrent !== 0; tmpCurrent--) {
            line[tmpCurrent] = line[tmpCurrent - 1];
        }
        line[0] = 0;

        return line;
    };

    var explosion = function (line) {
        //先頭行の処理
        if (line[0] === '2') {
            line[0] = '0';
        }

        for (var current = 1; current < lineLength; current++) {
            if (line[current] === '2') {
                line = shiftBombs(line, current);
            }
        }

        return line;
    };

    this.lines = this.lines.map(function (line) {
        return explosion(line);
    });
};

BombApplication.prototype.outputLines = function () {
    var lastLineNum = this.lineNum - 1;

    for (var current = 0; current < this.lineLength; current++) {
        var output = '';

        this.lines.forEach(function (line, index) {
            output += line[current];

            if (index !== lastLineNum) {
                output += ' ';
            }
        });

        console.log(output);
    }
};


readline.on('line', function (line) {
    inputs.push(line);
});

readline.on('close', function () {
    readline.close();
    process.stdin.destroy();

    var bombApplication = new BombApplication(inputs);

    bombApplication.doExplosion();
    bombApplication.outputLines();
});