static int runTestCase(int casenum__) {
		switch (casenum__) {
		case 0: {
			int[] x = { 1, 3, 5 };
			int[] y = { 2, 2, 2 };
			int expected__ = 4;

			return verifyCase(casenum__, expected__, new LinearTravellingSalesman().findMinimumDistance(x, y));
		}
		case 1: {
			int[] x = { 3, 2, 1 };
			int[] y = { 3, 2, 1 };
			int expected__ = 4;

			return verifyCase(casenum__, expected__, new LinearTravellingSalesman().findMinimumDistance(x, y));
		}
		case 2: {
			int[] x = { 0, 100, 1000, 10000 };
			int[] y = { 0, 10, 100, 1000 };
			int expected__ = 11000;

			return verifyCase(casenum__, expected__, new LinearTravellingSalesman().findMinimumDistance(x, y));
		}
		case 3: {
			int[] x = { 80, 60, 70, 50 };
			int[] y = { 50, 70, 60, 80 };
			int expected__ = 60;

			return verifyCase(casenum__, expected__, new LinearTravellingSalesman().findMinimumDistance(x, y));
		}
		case 4: {
			int[] x = { 7, 7, 7, 7, 7, 7, 7 };
			int[] y = { 105, 1231, 5663, 295, 3062, 380, 7777 };
			int expected__ = 7672;

			return verifyCase(casenum__, expected__, new LinearTravellingSalesman().findMinimumDistance(x, y));
		}

		// custom cases

		/*
		 * case 5: {
		 * int[] x = ;
		 * int[] y = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * LinearTravellingSalesman().findMinimumDistance(x, y));
		 * }
		 */
		/*
		 * case 6: {
		 * int[] x = ;
		 * int[] y = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * LinearTravellingSalesman().findMinimumDistance(x, y));
		 * }
		 */
		/*
		 * case 7: {
		 * int[] x = ;
		 * int[] y = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * LinearTravellingSalesman().findMinimumDistance(x, y));
		 * }
		 */
		default:
			return -1;
		}
	}