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What is the output of the following code?string str = "hello";str.insert(1, "123");cout << str;"h123ello""1hello""hello123""h123lo"

Question

What is the output of the following code?

string str = &quot;hello&quot;;
str.insert(1, &quot;123&quot;);
cout &lt;&lt; str;
  • "h123ello"
  • "1hello"
  • "hello123"
  • "h123lo"
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Solution

The output of the code will be "h123ello".

Here's the step by step explanation:

  1. A string "hello" is created and assigned to the variable str.
  2. The insert() function is called on str. This function inserts the string "123" at the position 1 of str. The position of the characters in a string is zero-based, which means the first character is at position 0, the second character is at position 1, and so on. So, "123" is inserted after the first character 'h'.
  3. The cout statement prints the modified string str to the console.

So, the output is "h123ello".

This problem has been solved

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