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Commit5451945

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solves ugly numbr ii in java
1 parent8b64156 commit5451945

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+28
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‎README.md

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| 260|[Single Number III](https://leetcode.com/problems/single-number-iii)|[![Java](assets/java.png)](src/SingleNumberIII.java)||
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| 261| 🔒[Graph Valid Tree](https://leetcode.com/problems/graph-valid-tree)|||
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| 263|[Ugly Number](https://leetcode.com/problems/ugly-number)|[![Java](assets/java.png)](src/UglyNumber.java)[![Python](assets/python.png)](python/ugly_number.py)||
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| 264|[Ugly Number II](https://leetcode.com/problems/ugly-number-ii)|||
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| 264|[Ugly Number II](https://leetcode.com/problems/ugly-number-ii)|[![Java](assets/java.png)](src/UglyNumberII.java)||
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| 266| 🔒[Palindrome Permutation](https://leetcode.com/problems/palindrome-permutation)|||
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| 267| 🔒[Palindrome Permutation II](https://leetcode.com/problems/palindrome-permutation-ii)|||
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| 268|[Missing Number](https://leetcode.com/problems/missing-number)|[![Java](assets/java.png)](src/MissingNumber.java)[![Python](assets/python.png)](python/missing_number.py)||

‎src/UglyNumberII.java

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// https://leetcode.com/problems/ugly-number-ii
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// T: O(N)
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// S: O(N)
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publicclassUglyNumberII {
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publicintnthUglyNumber(intn) {
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finalint[]dp =newint[n];
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dp[0] =1;
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intindex2,index3,index5;
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index2 =index3 =index5 =0;
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intfactor2 =2,factor3 =3,factor5 =5;
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for(inti =1 ;i <n ;i++) {
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finalintuglyNumber =min(factor2,factor3,factor5);
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dp[i] =uglyNumber;
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if(factor2 ==uglyNumber)factor2 =2 *dp[++index2];
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if(factor3 ==uglyNumber)factor3 =3 *dp[++index3];
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if(factor5 ==uglyNumber)factor5 =5 *dp[++index5];
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}
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returndp[n-1];
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}
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privateintmin(inta,intb,intc) {
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returnMath.min(a,Math.min(b,c));
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}
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}

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