Question

How to generate binary numbers from 0 to N using queue in C++

Answer 1

#include <iostream>
#include <queue>
 
void generateBinaryNumbers(int n) {
    std::queue<std::string> q;

    q.push("1");
    int i = 1;
    while (i++ <= n) {
        q.push(q.front() + "0");
        q.push(q.front() + "1");
        std::cout << q.front() << ' ';
        q.pop();
    }
}
 
int main() {
    int n = 15;
     
    generateBinaryNumbers(n);
 
    return 0;
}
 
 
 
/*
run:
 
1 10 11 100 101 110 111 1000 1001 1010 1011 1100 1101 1110 1111 
 
*/

 

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