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C++ Program to Perform Linear Search on a Vector

  C++ Program to Perform Linear Search on a Vector Introduction In this C++ program, we will learn how to perform a Linear Search on a vector. The program first takes the size of the vector and its elements as input. Then it asks the user for the element to search. If the element is found, it displays the index where it is located. Otherwise, it displays a message indicating that the element is not found. C++ Program #include<bits/stdc++.h> using namespace std; int main() { int num, search, found = 0; cout << "Enter the size of the vector:" << endl; cin >> num; vector<int> v(num); cout << "Enter " << num << " elements in vector:" << endl; for(int i = 0; i < num; i++) { cin >> v[i]; } cout << "Enter element that you want to search:" << endl; cin >> search; for(int i = 0; i < num; i++) { ...
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C Program to Remove Duplicate Characters from a String

🧹 C Program to Remove Duplicate Characters from a String

#include <stdio.h>
#include <string.h>

int main() {
    int i, j, k;
    char str[100];

    printf("Enter the string:\n");
    scanf(" %[^\n]", str);  // space before %[^\n] to handle newline

    for (i = 0; str[i] != '\0'; i++) {
        j = i + 1;
        while (str[j] != '\0') {
            if (str[j] == str[i]) {
                // Shift all characters one position to the left
                for (k = j; str[k] != '\0'; k++) {
                    str[k] = str[k + 1];
                }
                // Don't increment j here — next character is already shifted
            } else {
                j++;
            }
        }
    }

    printf("After removing Duplicate Elements in Given String: %s\n", str);
    return 0;
}

📝 Explanation:

This program reads a string from the user and removes duplicate characters by shifting the remaining characters left whenever a duplicate is found.

💡 Sample Output:

Enter the string:
programming
After removing Duplicate Elements in Given String: progamin

🔍 Keywords:

remove duplicates from string in C, string manipulation in C, C string interview programs, delete repeated characters, remove duplicate characters in C

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