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author | Raphael McSinyx <vn.mcsinyx@gmail.com> | 2017-02-15 11:33:54 +0700 |
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committer | Raphael McSinyx <vn.mcsinyx@gmail.com> | 2017-02-15 11:33:54 +0700 |
commit | 5a44eb260b9b35096df7371a702ba99b7265b3f9 (patch) | |
tree | 60ad135076dbca49d1e20eac540c53bdd6e8b97a /others/volume1/061.pas | |
parent | fa7cbaee4baf174ee416280d82a60fade6d3eaad (diff) | |
download | cp-5a44eb260b9b35096df7371a702ba99b7265b3f9.tar.gz |
Update others/volume1
Diffstat (limited to 'others/volume1/061.pas')
-rw-r--r-- | others/volume1/061.pas | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/others/volume1/061.pas b/others/volume1/061.pas new file mode 100644 index 0000000..46bf839 --- /dev/null +++ b/others/volume1/061.pas @@ -0,0 +1,21 @@ +var + n, i: int16; + a, b: array of int16; + +begin + readln(n); + setlength(a, n); + setlength(b, n); + for i := 0 to n - 1 do + begin + read(a[i]); + b[a[i] - 1] := i + 1 + end; + for i := 0 to n - 1 do + if a[i] <> b[i] then + begin + writeln('NO'); + exit + end; + writeln('YES') +end. |