Skip to content

third solution subset #5

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Feb 27, 2017
Merged

third solution subset #5

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 21 additions & 6 deletions 78 Subsets.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ var generate = function(nums, index, cur, result) {
result.push(cur.slice());
return
}

generate(nums, index + 1, cur, result);
cur.push(nums[index]);
generate(nums, index + 1, cur, result);
Expand All @@ -42,11 +42,9 @@ var generate = function(nums, index, cur, result) {


// second try


var subsets = function(nums) {
var res = [[]];

function generate(nums, i, cur, res) {
for(; i < nums.length; i++) {
cur.push(nums[i]);
Expand All @@ -55,7 +53,24 @@ var subsets = function(nums) {
cur.pop();
}
}

generate(nums, 0, [], res);
return res;
};
};

// Third solution
var subsets = function(nums) {
var results = [];
combine(nums, 0, [], results);
return results;
}

var combine = function(nums, index, partial, results) {
if(index === nums.length) {
results.push(partial);
return;
}

combine(nums, index + 1, partial, results);
combine(nums, index + 1, partial.concat([nums[index]]), results);
}