20250506 finished.

src/problem/mod.rs

@@ -636,3 +636,5 @@ mod p1007_minimum_domino_rotations_for_equal_row;
 mod p1128_number_of_equivalent_domino_pairs;
 
 mod p790_domino_and_tromino_tiling;
+
+mod p1920_build_array_from_permutation;

src/problem/p1920_build_array_from_permutation.rs

@@ -0,0 +1,31 @@
+/**
+ * [1920] Build Array from Permutation
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn build_array(nums: Vec<i32>) -> Vec<i32> {
+        nums.iter().map(|x| nums[*x as usize]).collect()
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_1920() {
+        assert_eq!(
+            vec![0, 1, 2, 4, 5, 3],
+            Solution::build_array(vec![0, 2, 1, 5, 3, 4])
+        );
+        assert_eq!(
+            vec![4, 5, 0, 1, 2, 3],
+            Solution::build_array(vec![5, 0, 1, 2, 3, 4])
+        );
+    }
+}