joi-2010-1.js

var fs = require('fs'),
	sys = require('sys');

var result = function (file) {
	fs.readFile(file, "utf-8", function (err, data) {
		time = 0;
		data = data.split('\n').forEach(function (val, i) {
			time += +val
		})
		r = parseInt((time/60))+'\n'+(time%60)
		
		fs.writeFile(file, r);
	});
}

result('2011-yo-t1-in1.txt')
result('2011-yo-t1-in2.txt')
result('2011-yo-t1-in3.txt')
result('2011-yo-t1-in4.txt')
result('2011-yo-t1-in5.txt')