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Retranslate the complete Japanese online edition from Chinese (#2008)
* Retranslate the complete Japanese online edition from Chinese * Fit Japanese homepage labels and localize heading permalinks * Point Japanese contribution instructions to the Japanese preview * Replace locale conditionals with multilingual UI tables
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@@ -12,7 +12,7 @@ public class two_sum {
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/* 方法 1:総当たり列挙 */
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static int[] twoSumBruteForce(int[] nums, int target) {
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int size = nums.length;
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// 2重ループのため、時間計算量は O(n^2)
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// 二重ループのため、時間計算量は O(n^2)
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for (int i = 0; i < size - 1; i++) {
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for (int j = i + 1; j < size; j++) {
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if (nums[i] + nums[j] == target)
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@@ -25,9 +25,9 @@ public class two_sum {
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/* 方法 2:補助ハッシュテーブル */
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static int[] twoSumHashTable(int[] nums, int target) {
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int size = nums.length;
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// 補助ハッシュテーブルを使用し、空間計算量は O(n)
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// 補助ハッシュテーブルの空間計算量は O(n)
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Map<Integer, Integer> dic = new HashMap<>();
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// 単一ループで、時間計算量は O(n)
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// 一重ループのため、時間計算量は O(n)
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for (int i = 0; i < size; i++) {
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if (dic.containsKey(target - nums[i])) {
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return new int[] { dic.get(target - nums[i]), i };
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@@ -38,16 +38,16 @@ public class two_sum {
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}
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public static void main(String[] args) {
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// ======= Test Case =======
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// ======= テストケース =======
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int[] nums = { 2, 7, 11, 15 };
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int target = 13;
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// ====== Driver Code ======
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// ====== 実行用コード ======
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// 方法 1
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int[] res = twoSumBruteForce(nums, target);
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System.out.println("方法1 res = " + Arrays.toString(res));
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System.out.println("方法 1 res = " + Arrays.toString(res));
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// 方法 2
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res = twoSumHashTable(nums, target);
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System.out.println("方法2 res = " + Arrays.toString(res));
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System.out.println("方法 2 res = " + Arrays.toString(res));
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}
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}
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