complete 1092.kt 23029.kt 26587.kt 30553.kt

storage/zeta/kt/completed/23029.kt

@@ -0,0 +1,36 @@
+fun maxFoodEaten(cntsFoods: List<Int>): Int {
+    val dp = Array(cntsFoods.size) { Array<Int>(3) { 0 } }
+
+    // 0: 안먹을경우
+    // 1: 첫번째인경우
+    // 2: 두번째인경우
+
+    for ((i, food) in cntsFoods.withIndex()) {
+        if (i == 0) {
+            dp[i][1] = food
+            dp[i][2] = 0
+            dp[i][0] = 0
+        } else if (i == 1) {
+            dp[i][2] = dp[i - 1][1] + food / 2
+            dp[i][1] = dp[i - 1][0] + food
+            dp[i][0] = dp[i - 1].max()
+        } else {
+            dp[i][0] = dp[i - 1].max()
+            dp[i][1] = dp[i - 1][0] + food
+            dp[i][2] = dp[i - 1][1] + food / 2
+        }
+
+    }
+
+    return dp.last().max()
+}
+
+fun main() = with(System.`in`.bufferedReader()) {
+    val n = this.readLine().toInt()
+    val cntsFoods = (1..n).map {
+        this.readLine().toInt()
+
+    }
+
+    println(maxFoodEaten(cntsFoods))
+}