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Commitfa75bc2

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[LEET-3354] add 3354
1 parenta87e53d commitfa75bc2

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3 files changed

+78
-0
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  • paginated_contents/algorithms/4th_thousand
  • src

3 files changed

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‎paginated_contents/algorithms/4th_thousand/README.md

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| # | Title | Solutions | Video | Difficulty | Tag
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|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|------------|----------------------------------------------------------------------
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| 3354|[Make Array Elements Equal to Zero](https://leetcode.com/problems/make-array-elements-equal-to-zero/)|[Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3354.java)|| Easy|
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| 3349|[Adjacent Increasing Subarrays Detection I](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/)|[Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3349.java)|| Easy|
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| 3340|[Check Balanced String](https://leetcode.com/problems/check-balanced-string/)|[Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3340.java)|| Easy|
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| 3330|[Find the Original Typed String I](https://leetcode.com/problems/find-the-original-typed-string-i/)|[Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3330.java)|| Easy|
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packagecom.fishercoder.solutions.fourththousand;
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importjava.util.Arrays;
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publicclass_3354 {
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publicstaticclassSolution1 {
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publicintcountValidSelections(int[]nums) {
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intcount =0;
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for (inti =0;i <nums.length;i++) {
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if (nums[i] ==0) {
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if (isValidWithMoveDirection(nums,i,true)) {
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count++;
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}
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if (isValidWithMoveDirection(nums,i,false)) {
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count++;
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}
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}
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}
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returncount;
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}
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privatebooleanisValidWithMoveDirection(int[]nums,intindex,booleanmoveLeft) {
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int[]copy =Arrays.copyOf(nums,nums.length);
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while (index >=0 &&index <nums.length) {
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if (moveLeft) {
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if (copy[index] >0) {
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copy[index]--;
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moveLeft = !moveLeft;
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index++;
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}else {
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index--;
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}
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}else {
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if (copy[index] >0) {
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copy[index]--;
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moveLeft = !moveLeft;
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index--;
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}else {
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index++;
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}
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}
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}
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for (intnum :copy) {
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if (num !=0) {
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returnfalse;
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}
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}
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returntrue;
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}
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}
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}
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packagecom.fishercoder.fourththousand;
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importcom.fishercoder.solutions.fourththousand._3354;
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importorg.junit.jupiter.api.BeforeEach;
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importorg.junit.jupiter.api.Test;
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importstaticorg.junit.jupiter.api.Assertions.assertEquals;
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publicclass_3354Test {
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private_3354.Solution1solution1;
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@BeforeEach
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publicvoidsetup() {
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solution1 =new_3354.Solution1();
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}
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@Test
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publicvoidtest1() {
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assertEquals(2,solution1.countValidSelections(newint[]{1,0,2,0,3}));
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}
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@Test
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publicvoidtest2() {
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assertEquals(3,solution1.countValidSelections(newint[]{16,13,10,0,0,0,10,6,7,8,7}));
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}
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}

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