C++ Online Compiler
Example: C++ program to display prime numbers between two intervals using function
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main.cpp
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// C++ program to display prime numbers between two intervals using function #include <bits/stdc++.h> using namespace std; // @custom function to find the prime numbers between intervals int GeneratePrimeNumbers(int low_number, int high_number) { int flag, temp; // this will swap the value of intervals between each other // if low_number is greater then high_number if (low_number > high_number) { temp; temp = low_number; low_number = high_number; high_number = temp; } cout << "\nThe prime numbers between " << low_number << " and " << high_number << " are: "; for (int i = low_number; i <= high_number; i++) { flag = 0; // this will ignore numbers less than 2 if (i <= 1) { continue; } // if low_number is a non-prime number, flag will be 1 for (int j = 2; j <= i / 2; j++) { if (i % j == 0) { flag = 1; break; } } if (flag == 0) cout << i << " "; } cout << "\n"; return 0; } // @driver function to call & print the primer numbers int main() { int low_number, high_number; cout << "Enter the two intervals:\n"; cin >> low_number >> high_number; // @call the custom function to print the numbers GeneratePrimeNumbers(low_number, high_number); return 0; }
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