# CICLE FOR and DICTIONARY
**URL:** https://discourse.julialang.org/t/cicle-for-and-dictionary/30614
**Category:** General Usage
**Created:** [November 2, 2019, 9:50am UTC](https://discourse.julialang.org/t/cicle-for-and-dictionary/30614 "2019-11-02T09:50:06Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Caterina\_Cerutti](https://discourse.julialang.org/u/Caterina_Cerutti)
#### Post date: [November 2, 2019, 9:50am UTC](https://discourse.julialang.org/t/cicle-for-and-dictionary/30614/1 "2019-11-02T09:50:06Z")
I have to write a FOR’s cicle from 1 to 100 and then I have to create a “Dict” ,Called _squares_, which contains as key the int number and as elements their squares.
I have written
For i in 1:100
Squares=Dict(i=\>i^2)
End
But it doesn’t run.
Can someone help me?
---
### Author:  [@NiclasMattsson](https://discourse.julialang.org/u/NiclasMattsson)
#### Post date: [November 2, 2019, 10:08am UTC](https://discourse.julialang.org/t/cicle-for-and-dictionary/30614/2 "2019-11-02T10:08:34Z")
You’re close:
```julia
julia> squares = Dict() # but Dict{Int,Int}() is better when you need performance
Dict{Any,Any} with 0 entries
julia> for i=1:100
squares[i] = i^2
end
julia> squares
Dict{Any,Any} with 100 entries:
68 => 4624
2 => 4
89 => 7921
11 => 121
39 => 1521
46 => 2116
...
```
Or here’s a nice one-liner:
```julia
julia> squares = Dict(i => i^2 for i in 1:100)
Dict{Int64,Int64} with 100 entries:
68 => 4624
2 => 4
89 => 7921
11 => 121
39 => 1521
46 => 2116
...
```
Note that elements are stored in indeterminate order in a `Dict`.
The code you wrote didn’t work because you assign a new `Dict` in each iteration of the loop. You should also avoid capitalizing keywords, but maybe that was just in your post.
---
### Author:  [@Caterina\_Cerutti](https://discourse.julialang.org/u/Caterina_Cerutti)
#### Post date: [November 2, 2019, 10:18am UTC](https://discourse.julialang.org/t/cicle-for-and-dictionary/30614/3 "2019-11-02T10:18:55Z")
Thank you very much!