Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit855ada5

Browse files
add 823
1 parent734cb40 commit855ada5

File tree

3 files changed

+69
-1
lines changed

3 files changed

+69
-1
lines changed

‎README.md

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -426,7 +426,8 @@ _If you like this project, please leave me a star._ ★
426426
|836|[Rectangle Overlap](https://leetcode.com/problems/rectangle-overlap/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_836.java)|[:tv:](https://youtu.be/o6hHUk4DOW0)|Easy|
427427
|832|[Flipping an Image](https://leetcode.com/problems/flipping-an-image/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_832.java)||Easy|
428428
|830|[Positions of Large Groups](https://leetcode.com/problems/positions-of-large-groups/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_830.java)||Easy|
429-
|824|[Goat Latin](https://leetcode.com/problems/goat-latin/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_824.java)||Easy|
429+
|824|[Goat Latin](https://leetcode.com/problems/goat-latin/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_824.java)||Easy|
430+
|823|[Binary Trees With Factors](https://leetcode.com/problems/binary-trees-with-factors/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_823.java)||Medium|
430431
|821|[Shortest Distance to a Character](https://leetcode.com/problems/shortest-distance-to-a-character/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_821.java)||Easy|
431432
|820|[Short Encoding of Words](https://leetcode.com/problems/short-encoding-of-words/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_820.java)||Medium|
432433
|819|[Most Common Word](https://leetcode.com/problems/most-common-word/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_819.java) | |Easy| HashMap
Lines changed: 35 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,35 @@
1+
packagecom.fishercoder.solutions;
2+
3+
importjava.util.Arrays;
4+
importjava.util.HashMap;
5+
importjava.util.Map;
6+
7+
publicclass_823 {
8+
publicstaticclassSolution1 {
9+
/**
10+
* credit: https://leetcode.com/problems/binary-trees-with-factors/discuss/126277/Concise-Java-solution-using-HashMap-with-detailed-explanation.-Easily-understand!!!
11+
*/
12+
longMOD =1000000007l;
13+
14+
publicintnumFactoredBinaryTrees(int[]arr) {
15+
Arrays.sort(arr);
16+
Map<Integer,Long>map =newHashMap<>();
17+
longcount =1;
18+
map.put(arr[0],count);
19+
for (inti =1;i <arr.length;i++) {
20+
count =1;
21+
for (intkey :map.keySet()) {
22+
if (arr[i] %key ==0 &&map.containsKey(arr[i] /key)) {
23+
count +=map.get(key) *map.get(arr[i] /key);
24+
}
25+
}
26+
map.put(arr[i],count);
27+
}
28+
longsum =0;
29+
for (intkey :map.keySet()) {
30+
sum = (sum +map.get(key)) %MOD;
31+
}
32+
return (int)sum;
33+
}
34+
}
35+
}
Lines changed: 32 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,32 @@
1+
packagecom.fishercoder;
2+
3+
importcom.fishercoder.solutions._823;
4+
importorg.junit.BeforeClass;
5+
importorg.junit.Test;
6+
7+
importstaticorg.junit.Assert.assertEquals;
8+
9+
publicclass_823Test {
10+
privatestatic_823.Solution1solution1;
11+
12+
@BeforeClass
13+
publicstaticvoidsetup() {
14+
solution1 =new_823.Solution1();
15+
}
16+
17+
@Test
18+
publicvoidtest1() {
19+
assertEquals(3,solution1.numFactoredBinaryTrees(newint[]{2,4}));
20+
}
21+
22+
@Test
23+
publicvoidtest2() {
24+
assertEquals(9,solution1.numFactoredBinaryTrees(newint[]{2,3,4,6,9}));
25+
}
26+
27+
@Test
28+
publicvoidtest3() {
29+
assertEquals(25,solution1.numFactoredBinaryTrees(newint[]{2,3,4,8,16,18}));
30+
}
31+
32+
}

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp