Solved 0949

Author: guangsheng.li01

src/a0646_maximum_length_of_pair_chain.rs

@@ -0,0 +1,29 @@
+/*
+ * [0646] maximum-length-of-pair-chain
+ */
+
+pub struct Solution {}
+
+// solution impl starts here
+
+impl Solution {
+    fn add(a: i32, b: i32) -> i32 {
+        a + b
+    }
+}
+
+// solution impl ends here
+
+// solution tests starts here
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_case0() {
+        assert_eq!(5, Solution::add(2, 3));
+    }
+}
+
+// solution tests ends here

src/a0949_largest_time_for_given_digits.rs

@@ -0,0 +1,55 @@
+/*
+ * [0949] largest-time-for-given-digits
+ */
+
+pub struct Solution {}
+
+// solution impl starts here
+
+impl Solution {
+    pub fn largest_time_from_digits(a: Vec<i32>) -> String {
+        let mut a = a;
+        a.sort();
+        a.reverse();
+        for i in 0..4 {
+            if a[i] > 2 {
+                continue;
+            }
+
+            for j in 0..4 {
+                if j == i || (a[i] == 2 && a[j] > 3) {
+                    continue;
+                }
+
+                for k in 0..4 {
+                    if k == i || k == j || a[k] > 5 {
+                        continue;
+                    }
+
+                    return format!("{}{}:{}{}", a[i], a[j], a[k], a[6 - i - j - k]);
+                }
+            }
+        }
+        "".to_string()
+    }
+}
+
+// solution impl ends here
+
+// solution tests starts here
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_case0() {
+        assert_eq!(
+            Solution::largest_time_from_digits(vec![1, 2, 3, 4]),
+            "23:41"
+        );
+        assert_eq!(Solution::largest_time_from_digits(vec![5, 5, 5, 5]), "");
+    }
+}
+
+// solution tests ends here

src/lib.rs

@@ -27,6 +27,7 @@ mod a0867_transpose_matrix;
 mod a0929_unique_email_addresses;
 mod a0931_minimum_falling_path_sum;
 mod a0937_reorder_data_in_log_files;
+mod a0949_largest_time_for_given_digits;
 mod a0973_k_closest_points_to_origin;
 mod a1021_remove_outermost_parentheses;
 mod a1047_remove_all_adjacent_duplicates_in_string;