Write the syntax of if- else statement.

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Q. Write the syntax of if- else statement.

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Concept understanding — Decision Control Statements (if, if-else and nested-if)

By default a C program runs its statements one after another, but decision (conditional) control statements let it choose between alternative paths depending on a condition. They are the basis of all decision-making programs.

if statement - executes a block only when its condition is true; if the condition is false the block is skipped.
```
if (condition)
    statement;
```
if-else statement - provides two alternatives: one block runs when the condition is true, the other when it is false.
```
if (condition)
    statement1;
else
    statement2;
```
Nested-if / else-if ladder - an if (or if-else) placed inside another, used to test several conditions in turn. This is how a program picks the largest of three numbers, or grades a value into ranges such as short, average and tall. …

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[!TLDR]

Syntax: if (condition) { block1; } else { block2; }

The if-else statement tests a condition. If it is true, the first block of statements runs; if it is false, the block following else runs. Exactly one of the two blocks is executed.

if (test condition)
{
    statement block 1;   /* executed if condition is true */
}
else
{ …

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Q.Write the syntax of if- else statement.

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