String Length Manual
Easy
C
Strings
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Problem Statement
Calculate the length of the string without calling stop(). Count up to the null character in a loop. Understanding the logic is important.
Input Format
A string entered by the user.
Output Format
An integer representing the length of the string.
Example
"hello"
5
Constraints
• String ends with null character ''
• Do not use strlen()
• Do not use strlen()
Concept Explanation
In C, a string ends when the null character '' is found.
String length is the number of characters before ''.
String length is the number of characters before ''.
Step-by-Step Explanation
1.Take the input string.
2.Initialize a counter length = 0.
3.Start from the first character of the string.
4.While the current character is not '':
5.Increment length by 1.
6.Move to the next character.
7.When '' is reached, stop the loop.
8.length now contains the total number of characters in the string.
2.Initialize a counter length = 0.
3.Start from the first character of the string.
4.While the current character is not '':
5.Increment length by 1.
6.Move to the next character.
7.When '' is reached, stop the loop.
8.length now contains the total number of characters in the string.
Concept Explanation
In C, a string ends when the null character '' is found.
String length is the number of characters before ''.
String length is the number of characters before ''.
Step-by-Step Explanation
1.Take the input string.
2.Initialize a counter length = 0.
3.Start from the first character of the string.
4.While the current character is not '':
5.Increment length by 1.
6.Move to the next character.
7.When '' is reached, stop the loop.
8.length now contains the total number of characters in the string.
2.Initialize a counter length = 0.
3.Start from the first character of the string.
4.While the current character is not '':
5.Increment length by 1.
6.Move to the next character.
7.When '' is reached, stop the loop.
8.length now contains the total number of characters in the string.
Input / Output Format
Input Format
A string entered by the user.
Output Format
An integer representing the length of the string.
Constraints
• String ends with null character ''
• Do not use strlen()
• Do not use strlen()
Examples
Input:
"hello"
Output:
5
Example Solution (Public)
//loop logic breakdown
while (str[length] != '\0') {
length++;
}
Official Solution Code
//loop logic breakdown
while (str[length] != '\0') {
length++;
}
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