-
Notifications
You must be signed in to change notification settings - Fork 1
/
index.js
52 lines (36 loc) · 1.27 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
/**
* @param {number[]} candidates
* @param {number} target
* @return {number[][]}
*/
var combinationSum2 = function(candidates, target) {
let samearr = [];
candidates.sort(function(a,b){ return b-a});
let len = candidates.length;
let beibao = function(left, _target){
if(left === len) return [];
if(samearr.indexOf(_target) !== -1) return samearr[_target];
let arr = [];
for(var i = left; i<len; i++){
let new_target = _target - candidates[i];
if(i>left && candidates[i] === candidates[i -1 ]) continue;
if(new_target < 0) continue;
if( new_target > 0) {
let r = beibao(i+1, new_target);
r.map(function(item){
let _item = item.slice(0);
_item.push(candidates[i]);
arr.push(_item);
})
continue;
}
if(new_target === 0) {
arr.push([_target])
continue;
}
}
samearr.push(arr);
return arr;
}
return beibao(0, target);
};