refactor: rename main.rs as lib.rs

1323_maximum_69_number/src/lib.rs

@@ -1,6 +1,4 @@
-fn main() {}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn maximum69_number(num: i32) -> i32 {

191_number_of_1_bits/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn hamming_weight(mut n: i32) -> i32 {

1920_build_array_from_permutation/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn build_array(nums: Vec<i32>) -> Vec<i32> {

202_happy_number/src/lib.rs

@@ -1,10 +1,6 @@
 use std::collections::HashSet;
 
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn is_happy(mut n: i32) -> bool {

206_reverse_linked_list/src/lib.rs

@@ -1,9 +1,3 @@
-use std::ops::Deref;
-
-fn main() {
-    println!("Hello, world!");
-}
-
 #[derive(PartialEq, Eq, Clone, Debug)]
 pub struct ListNode {
     pub val: i32,
@@ -17,7 +11,7 @@ impl ListNode {
     }
 }
 
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {

2807_insert_greatest_common_divisors_in_linked_list/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("{}", Solution::gcd(10, 25));
-}
-
-struct Solution;
+pub struct Solution;
 
 #[derive(PartialEq, Eq, Clone, Debug)]
 pub struct ListNode {
@@ -10,13 +6,6 @@ pub struct ListNode {
     pub next: Option<Box<ListNode>>,
 }
 
-impl ListNode {
-    #[inline]
-    fn new(val: i32) -> Self {
-        ListNode { next: None, val }
-    }
-}
-
 impl Solution {
     pub fn insert_greatest_common_divisors(
         mut head: Option<Box<ListNode>>,

2894_divisible_and_non_divisible_sums_difference/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn difference_of_sums(n: i32, m: i32) -> i32 {

3110_score_of_a_string/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("{}", Solution::score_of_string("hello".to_string()));
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn score_of_string(s: String) -> i32 {

342_power_of_four/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn is_power_of_four(mut n: i32) -> bool {

43_multiply_strings/src/lib.rs

@@ -1,12 +1,6 @@
 use std::cmp;
 
-fn main() {
-    let x = "000".to_string();
-    let y = "0".to_string();
-    println!("{}", Solution::plus(x, y));
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn multiply(x: String, y: String) -> String {

62_unique_path/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn unique_paths(m: i32, n: i32) -> i32 {

63_unique_path_2/src/lib.rs

@@ -1,11 +1,4 @@
-fn main() {
-    println!(
-        "{}",
-        Solution::unique_paths_with_obstacles(vec![vec![0], vec![1]])
-    );
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn unique_paths_with_obstacles(obstacle_grid: Vec<Vec<i32>>) -> i32 {

64_minimum_path_sum/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn min_path_sum(mut grid: Vec<Vec<i32>>) -> i32 {

679_24_game/src/lib.rs

@@ -1,16 +1,10 @@
-fn main() {
-    println!("{}", Solution::judge_point24(vec![1, 5, 9, 1]));
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn judge_point24(cards: Vec<i32>) -> bool {
         let mut stack: Vec<Vec<f64>> = vec![cards.iter().map(|&v| v as f64).collect()];
 
         while let Some(cards) = stack.pop() {
-            println!("{:?}", cards);
-
             if cards.len() == 1 {
                 if (cards.first().unwrap() - 24f64).abs() < 1e-6 {
                     return true;
@@ -27,7 +21,6 @@ impl Solution {
                     let mut left_cards = cards.clone();
                     left_cards.remove(j);
                     left_cards.remove(i);
-                    println!("{i} {j} {:?}", left_cards);
 
                     let mut new_cards = left_cards.clone();
                     new_cards.push(a + b);

837_new_21_game/src/lib.rs

@@ -1,8 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn new21_game(n: i32, k: i32, max_pts: i32) -> f64 {

980_unique_path_3/src/lib.rs

@@ -1,11 +1,4 @@
-fn main() {
-    println!(
-        "{}",
-        Solution::unique_paths_iii(vec![vec![1, 0, 0, 0], vec![0, 0, 0, 0], vec![0, 0, 2, -1]])
-    );
-}
-
-struct Solution;
+pub struct Solution;
 
 impl Solution {
     pub fn unique_paths_iii(grid: Vec<Vec<i32>>) -> i32 {