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Solve LeetCode 3 Longest Substring Without Repeating Characters in C++ using the sliding window

Longest Substring Without Repeating Characters in C++ LeetCode 3 · sliding window · last index array Table of Contents Problem Statement Approach Algorithm C++ Program Input Sample Output Output Explanation Dry Run Flow of Execution Time Complexity Space Complexity Applications Key Points Interview Questions Frequently Asked Questions Conclusion Problem Statement 3. Longest Substring Without Repeating Characters Given a string s , find the length of the longest substring that contains no repeating characters. A substring is a continuous part of the string, so "pwke" is a subsequence of "pwwkew" but not a substring. Approach We use a sliding window . The window is the part of the string between start and end , and we always keep it free of repeated characters. An array lastIndex of size 128 remembers the most recent position of every ASCII ...

C Program to Print Prime Numbers Between Two Numbers

C Program to Print Prime Numbers Between Two Numbers

✅ C Program to Print Prime Numbers Between Two Numbers

#include <stdio.h>
int main( )
{
    int start,end,count,i,j;
    printf("Enter the start and ending values of the prime number:\n");
    scanf("%d %d",&start,&end);
    
    for(i=start;i<end;i++)
    {
        count=0;
        for(j=1;j<=i;j++)
        {
            if(i%j==0)
            {
                count++;
            }
        }
        if(count==2)
        {
            printf("%d ",i);
        }
    }
}
  

๐Ÿ“˜ Explanation:

This program prints all prime numbers between two given numbers. A prime number is a number that has exactly two divisors: 1 and itself.

  • Take starting and ending range from the user.
  • For each number in the range, check how many divisors it has.
  • If the count of divisors is exactly 2, it is a prime number.
  • Print the number if it satisfies the prime condition.

๐Ÿงพ Sample Output:

Enter the start and ending values of the prime number:
10 25
11 13 17 19 23
  

๐Ÿ”‘ Keywords:

C program prime numbers between two numbers, prime number logic in C, number programs in C, C programming examples, beginner C coding problems

๐Ÿ“Œ Hashtags:

#CProgramming #PrimeNumbers #LearnC #CodingForBeginners #ForLoop #NumberPrograms #1printf

๐Ÿ” Search Description:

Learn how to print prime numbers between two given numbers in C using for loop. Simple and beginner-friendly program with explanation and sample output.

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