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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     const int SIZE = 50;
  6.     float A[SIZE];
  7.  
  8.     float *ptr = A;   // pointer to the array
  9.  
  10.     // ---- Input 50 float numbers ----
  11.     cout << "Enter 50 float numbers:\n";
  12.     for (int i = 0; i < SIZE; i++) {
  13.         cin >> *(ptr + i);
  14.     }
  15.  
  16.     // ---- Input number x to search ----
  17.     float x;
  18.     cout << "\nEnter number to search for: ";
  19.     cin >> x;
  20.  
  21.     // ---- Search for x using pointer ----
  22.     float *foundAddress = nullptr;
  23.  
  24.     for (int i = 0; i < SIZE; i++) {
  25.         if (*(ptr + i) == x) {
  26.             foundAddress = (ptr + i);
  27.             break;
  28.         }
  29.     }
  30.  
  31.     // ---- Print result ----
  32.     if (foundAddress != nullptr) {
  33.         cout << "\nNumber found at address: " << foundAddress << endl;
  34.     } else {
  35.         cout << "\nNumber NOT found in the array." << endl;
  36.     }
  37.  
  38.     return 0;
  39. }
  40.  
Success #stdin #stdout 0.01s 5276KB
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stdin
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Standard input is empty
stdout
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Enter 50 float numbers:

Enter number to search for: 
Number found at address: 0x7ffc78f650d4
https://ideone.com/OUeZuA
Q2
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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