#include<iostream>
void bubbleSort(int a[], int n)
{
for (int i = 0; i < n - 1; i++)
for (int j = n - 1; j > i; j--)
if (a[j] < a[j - 1])
std::swap(a[j], a[j - 1]);
}
int main() {
int a[]={1,4,7,2,6,5,3,9,8,10};
bubbleSort(a, std::size(a));
for (size_t i=0;i<10;i++)
{
std::cout<< a[i];
}
}