10000 add 1862 · sksaini908/Leetcode@adfe2cd · GitHub
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‎README.md

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@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ ★
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| # | Title | Solutions | Video | Difficulty | Tag
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|-----|----------------|---------------|--------|-------------|-------------
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|1862|[Sum of Floored Pairs](https://leetcode.com/problems/sum-of-floored-pairs/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1862.java) ||Hard|Math|
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|1861|[Rotating the Box](https://leetcode.com/problems/rotating-the-box/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1861.java) ||Medium|Array, Two Pointers|
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|1860|[Incremental Memory Leak](https://leetcode.com/problems/incremental-memory-leak/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1860.java) ||Medium|Math|
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|1859|[Sorting the Sentence](https://leetcode.com/problems/sorting-the-sentence/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1859.java) ||Easy|String, Sort|

‎src/main/java/com/fishercoder/solutions/_1862.java

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package com.fishercoder.solutions;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.TreeMap;
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public class _1862 {
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public static class Solution1 {
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/**TODO: this results in TLE, fix it.*/
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public int sumOfFlooredPairs(int[] nums) {
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TreeMap<Integer, Integer> map = new TreeMap<>();
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for (int num : nums) {
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map.put(num, map.getOrDefault(num, 0) + 1);
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}
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List<Integer> list = new ArrayList<>(map.keySet());
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int mod = 1000000007;
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long sum = 0l;
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for (int i = list.size() - 1; i >= 0; i--) {
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for (int j = i; j >= 0; j--) {
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sum += (list.get(i) / list.get(j)) * map.get(list.get(j)) * map.get(list.get(i));
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sum %= mod;
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}
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}
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return (int) sum;
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}
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}
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}

‎src/test/java/com/fishercoder/_1862Test.java

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package com.fishercoder;
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import com.fishercoder.solutions._1862;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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public class _1862Test {
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private static _1862.Solution1 solution1;
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@BeforeClass
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public static void setup() {
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solution1 = new _1862.Solution1();
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}
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@Test
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public void test1() {
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assertEquals(49, solution1.sumOfFlooredPairs(new int[]{7, 7, 7, 7, 7, 7, 7}));
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}
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@Test
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public void test2() {
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assertEquals(10, solution1.sumOfFlooredPairs(new int[]{2, 5, 9}));
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}
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@Test
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public void test3() {
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assertEquals(17, solution1.sumOfFlooredPairs(new int[]{4, 3, 4, 3, 5}));
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}
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}

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