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Commit 2e1396b

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add: Triangle
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‎README.md‎

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@@ -32,6 +32,7 @@ This is the solutions collection of my LeetCode submissions, most of them are pr
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|73|[Set Matrix Zeroes](https://leetcode.com/problems/set-matrix-zeroes/) | [JavaScript](./src/set-matrix-zeroes/res.js)|Medium|
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|75|[Sort Colors](https://leetcode.com/problems/sort-colors/) | [JavaScript](./src/sort-colors/res.js)|Medium|
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|91|[Decode Ways](https://leetcode.com/problems/decode-ways/) | [JavaScript](./src/decode-ways/res.js)|Medium|
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|120|[Triangle](https://leetcode.com/problems/triangle/) | [JavaScript](./src/triangle/res.js)|Medium|
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|130|[Surrounded Regions](https://leetcode.com/problems/surrounded-regions/) | [JavaScript](./src/surrounded-regions/res.js)|Medium|
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|136|[Single Number](https://leetcode.com/problems/single-number/) | [JavaScript](./src/single-number/res.js)|Easy|
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|175|[Combine Two Tables](https://leetcode.com/problems/combine-two-tables/)| [SQL](./src/combine-two-tables/res.txt)|Easy|

‎src/triangle/res.js‎

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/**
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* res.js
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* @authors Joe Jiang (hijiangtao@gmail.com)
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* @date 2017年04月06日 21:23:50
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*
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* Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.
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*
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* For example, given the following triangle
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* [
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* [2],
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* [3,4],
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* [6,5,7],
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* [4,1,8,3]
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* ]
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*
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* The minimum path sum from top to bottom is 11 (i.e., 2 +たす 3 +たす 5 +たす 1 = 11).
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*
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* @param {number[][]} triangle
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* @return {number}
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*/
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let minimumTotal = function(triangle) {
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let row = triangle.length;
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if (!row) return null;
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for (let i=row-2; i>=0; i--) {
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for (let j=0; j<=i; j++) {
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triangle[i][j] += min(triangle[i+1][j], triangle[i+1][j+1]);
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}
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}
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return triangle[0][0];
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};
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let min = function(a, b) {
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if (a>b) return b;
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else return a;
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};

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