#include <fstream>
#include <iostream>
int main()
{
std::ifstream is("a.txt");
int x, max = 0;
while (is >> x)
if (!(x % 5) && x > max)
max = x;
if (!max)
std::cout << "there is no max";
else
std::cout << "The max is: " << max;
is.close();
}
I2luY2x1ZGUgPGZzdHJlYW0+CiNpbmNsdWRlIDxpb3N0cmVhbT4KCmludCBtYWluKCkKewoJc3RkOjppZnN0cmVhbSBpcygiYS50eHQiKTsKCWludCB4LCBtYXggPSAwOwoKCXdoaWxlIChpcyA+PiB4KQoJCWlmICghKHggJSA1KSAmJiB4ID4gbWF4KQoJCQltYXggPSB4OwoKCWlmICghbWF4KQoJCXN0ZDo6Y291dCA8PCAidGhlcmUgaXMgbm8gbWF4IjsKCWVsc2UKCQlzdGQ6OmNvdXQgPDwgIlRoZSBtYXggaXM6ICIgPDwgbWF4OwoKCWlzLmNsb3NlKCk7Cn0=