#include <iostream>
#include <vector>
#include <algorithm>
int main()
{
std::vector<int> v { 1, 2, 3, 4, 5 };
auto end = std::end(v);
auto it = std::find(std::begin(v), end, 3);
if(it != end)
*it = 0;
v.push_back(6);
for(auto const& e : v)
std::cout << e << " ";
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8dmVjdG9yPgojaW5jbHVkZSA8YWxnb3JpdGhtPgoKaW50IG1haW4oKQp7CglzdGQ6OnZlY3RvcjxpbnQ+IHYgeyAxLCAyLCAzLCA0LCA1IH07CglhdXRvIGVuZCA9IHN0ZDo6ZW5kKHYpOwoJYXV0byBpdCA9IHN0ZDo6ZmluZChzdGQ6OmJlZ2luKHYpLCBlbmQsIDMpOwoJaWYoaXQgIT0gZW5kKQoJCSppdCA9IDA7CgoJdi5wdXNoX2JhY2soNik7CgoJZm9yKGF1dG8gY29uc3QmIGUgOiB2KQoJCXN0ZDo6Y291dCA8PCBlIDw8ICIgIjsKCglyZXR1cm4gMDsKfQo=