20240412 Finished

src/problem/mod.rs

@@ -100,3 +100,4 @@ mod p189_rotate_array;
 mod p121_best_time_to_buy_and_sell_stock;
 mod p122_best_time_to_buy_and_sell_stock_ii;
 mod p55_jump_game;
+mod p45_jump_game_ii;

src/problem/p45_jump_game_ii.rs

@@ -0,0 +1,41 @@
+/**
+ * [45] Jump Game II
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn jump(nums: Vec<i32>) -> i32 {
+        let mut dp = vec![i32::MAX; nums.len()];
+        dp[0] = 0;
+
+        for i in 0..nums.len() {
+            if dp[i] == i32::MAX {
+                continue;
+            }
+
+            for j in 1..=nums[i] as usize {
+                if i + j >= nums.len() {
+                    break;
+                }
+
+                dp[i + j] = dp[i + j].min(dp[i] + 1);
+            }
+        }
+
+        dp[nums.len() - 1]
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_45() {
+        assert_eq!(2, Solution::jump(vec![2, 3, 1, 1, 4]));
+    }
+}