[Solved] Which of the following C code snippets correctly stores a user's age and then increments it by 1? — Ans: int age = 20; age = age + 1; printf("%d", age); | C

C - Variables and Data Types

Which of the following C code snippets correctly stores a user's age and then increments it by 1?

A

<pre>int age = 20;
age = age + 1;
printf("%d", age);</pre>

B

<pre>int age;
age = age + 1;
printf("%d", age);</pre>

C

<pre>int age = 20;
printf("%d", age + 1);</pre>

D

<pre>int age;
printf("%d", age + 1);</pre>

Step-by-Step Solution

Solution:

Step 1: Initialize variable before use
```
int age = 20;
age = age + 1;
printf("%d", age);
```
initializes age to 20 before incrementing.
Step 2: Increment variable correctly
```
int age = 20;
age = age + 1;
printf("%d", age);
```
updates age by adding 1 and then prints it.
Step 3: Analyze other options
Options B and D use age uninitialized; C prints incremented value without updating variable.
Final Answer:
Option A correctly initializes and increments the variable -> Option A
Quick Check:
Initialize before incrementing [OK]

Quick Trick: Initialize variables before use [OK]

Common Mistakes:

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More C Quizzes

Which of the following C code snippets correctly stores a user's age and then increments it by 1?