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Which is missing? P89851
Write a program that reads sequences with all the numbers between 1 and n but one, and tells which one is missing.
Input
Input consists of several sequences. Every sequence begins with a number n between 1 and 104 followed by n − 1 natural numbers. Every number between 1 and n appears exactly once, except one of them, which is missing.
Output
For every sequence, print the missing number.
Public test cases
Input
5 3 2 1 5 2 1 10 5 4 6 7 1 2 9 10 8
Output
4 2 3
Information
- Author
- Jordi Petit
- Language
- English
- Translator
- Carlos Molina
- Original language
- Catalan
- Other languages
- Catalan
- Official solutions
- C++ Java Python
- User solutions
- C C++ Java Python