fix generation of random numbers to be more dynamic

test/test.c

@@ -81,7 +81,7 @@ int main(int argc, char **argv) {
 
 	// Prepare for sort tests
 	for (i = 0; i < n; i++) {
-		test_case[i] = gen_rand(-20, 100);
+		test_case[i] = gen_rand(-100, 100);
 	}
 	memcpy(qarray, test_case, sizeof(int) * n);
 	memcpy(test_array, test_case, sizeof(int) * n);