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Commit83dbeb4

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add 2154
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‎README.md

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| # | Title | Solutions | Video | Difficulty | Tag
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|-----|----------------|---------------|--------|-------------|-------------
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|2154|[Keep Multiplying Found Values by Two](https://leetcode.com/problems/keep-multiplying-found-values-by-two/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2154.java)||Easy||
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|2150|[Find All Lonely Numbers in the Array](https://leetcode.com/problems/find-all-lonely-numbers-in-the-array/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2150.java)||Medium||
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|2149|[Rearrange Array Elements by Sign](https://leetcode.com/problems/rearrange-array-elements-by-sign/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2149.java)||Medium||
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|2148|[Count Elements With Strictly Smaller and Greater Elements](https://leetcode.com/problems/count-elements-with-strictly-smaller-and-greater-elements/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2148.java)||Easy||
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packagecom.fishercoder.solutions;
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importjava.util.HashSet;
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importjava.util.Set;
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publicclass_2154 {
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publicstaticclassSolution1 {
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publicintfindFinalValue(int[]nums,intoriginal) {
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Set<Integer>set =newHashSet<>();
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for (intnum :nums) {
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set.add(num);
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}
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while (set.contains(original)) {
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original *=2;
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}
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returnoriginal;
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}
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}
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}
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packagecom.fishercoder;
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importcom.fishercoder.solutions._2145;
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importorg.junit.BeforeClass;
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importorg.junit.Test;
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importstaticorg.junit.Assert.assertEquals;
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publicclass_2145Test {
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privatestatic_2145.Solution1solution1;
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privatestaticint[]differences;
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privatestaticintlower;
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privatestaticintupper;
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privatestaticintexpected;
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@BeforeClass
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publicstaticvoidsetup() {
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solution1 =new_2145.Solution1();
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}
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@Test
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publicvoidtest1() {
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differences =newint[]{1, -3,4};
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lower =1;
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upper =6;
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expected =2;
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assertEquals(expected,solution1.numberOfArrays(differences,lower,upper));
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}
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@Test
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publicvoidtest2() {
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differences =newint[]{3, -4,5,1, -2};
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lower = -4;
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upper =5;
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expected =4;
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assertEquals(expected,solution1.numberOfArrays(differences,lower,upper));
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}
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@Test
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publicvoidtest3() {
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differences =newint[]{4, -7,2};
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lower =3;
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upper =6;
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expected =0;
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assertEquals(expected,solution1.numberOfArrays(differences,lower,upper));
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}
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@Test
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publicvoidtest4() {
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differences =newint[]{-97793,95035,79372, -41294, -90060, -57485,28899, -83385, -64425};
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lower = -99340;
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upper = -1477;
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expected =0;
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assertEquals(expected,solution1.numberOfArrays(differences,lower,upper));
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}
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@Test
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publicvoidtest5() {
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differences =newint[]{23263, -3868, -24260, -11705};
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lower = -26206;
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upper =23564;
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expected =9938;
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assertEquals(expected,solution1.numberOfArrays(differences,lower,upper));
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}
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}

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