1480-generator.js

var output = "";
var rateCovered = 0.2;

/**
 * EXPLAINING
 *
 * The 'output' var holds the string with the generated output,
 * which should be used as INPUT in the PA
 *
 * the 'rateCovered' var holds the chance of a square not be a tip.
 *
 * HOW TO USE
 *
 * > copy all this code (yes, all of it)
 * > open the console browser (hit f12 in your browser, then go to console tab)
 * > this console runs javascript, paste all this code there and hit enter.
 * > call the function genN, passing the number of test cases you want.
 * > the output will be in the 'output' var
 *
 * EXAMPLE
 *
 * genN(5); // 5 test cases
 * output; // or console.log(output);
 */

function genN(_n) {
	var i;
	var n, m, k;

	for(i=0; i<_n; i++) {
		n = rand(1, 25); // should have max of 25
		m = rand(1, 20);
		k = rand(1, n*m < 30 ? n*m : 30);

		gen(n, m, k);
	}

	output += "0 0 0\n";
}

function gen(n, m, k) {
	output += n + " " + m + " " + k + "\n";
	var i, j;
	var random;

	for(i=0; i<n; i++) {
		for(j=0; j<m; j++) {
			random = Math.random();
			if(random < rateCovered) output += ".";
			else output += rand(1, 8);
		}

		output += "\n";
	}

	for(i=0; i<k; i++) {
		random = (Math.floor(Math.random() * 1000)%n) + 1;
		output += random + " ";
		random = (Math.floor(Math.random() * 1000)%m) + 1;
		output += random + "\n";
	}
}

function rand(min, max) {
	var n;

	n = Math.random() * (max * 1000);
	n = Math.floor(n);
	n = (n%max) + min;

	return n;
}