3695A

3695A is a programming contest problem that appears in the online judge repository as problem number 3695. The task is an introductory level challenge designed to test basic input/output handling and simple algorithmic thinking. Participants are required to read a set of integers from standard input and produce a corresponding output that satisfies the constraints described in the problem statement.

The input format consists of a single line containing an integer n (1 ≤ n ≤ 100) followed by n space‑separated integers a1, a2, …, an. The goal is to compute the sum of these integers and print the result on a separate line. The output must be a single integer equal to the sum of the input numbers.

Because the problem is straightforward, the accepted solution can be written in almost any programming language. A typical solution reads the input, parses the integers, uses a loop or built‑in summation function to accumulate the total, and writes the total to the output stream. The algorithm runs in linear time O(n) and uses O(1) additional memory beyond the input storage.

In competitive programming communities, 3695A is often used as a warm‑up problem in contests or as a teaching example in introductory courses. It reinforces familiarity with standard input/output operations, basic control structures, and the importance of adhering to time and memory limits that are usually specified in the problem description (often 1 second and 256 MB). The problem’s simplicity makes it suitable for beginners while still providing a meaningful measure of programming fundamentals.