@Test

void P13_1() {

P13_1 s = new P13_1();

assertTrue(s.isPalindrome(new ListNode(1,

new ListNode(2,

new ListNode(3,

new ListNode(2,

new ListNode(1)

)

)

)

)));

}

@Test

void P13_2() {

P13_2 s = new P13_2();

assertTrue(s.isPalindrome(new ListNode(1,

new ListNode(2,

new ListNode(3,

new ListNode(2,

new ListNode(1)

)

)

)

)));

}

@Test

void P13_3() {

P13_3 s = new P13_3();

assertTrue(s.isPalindrome(new ListNode(1,

new ListNode(2,

new ListNode(3,

new ListNode(2,

new ListNode(1)

)

)

)

)));

}

@Test

void P13_4() {

P13_4 s = new P13_4();

assertTrue(s.isPalindrome(new ListNode(1,

new ListNode(2,

new ListNode(3,

new ListNode(2,

new ListNode(1)

)

)

)

)));

}

}