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#include <algorithm>
#include <string>
#include <iostream>
using namespace std;
bool squaresDiff10(size_t first, size_t second)
{
return second * second - first * first >= 10;
}
int main()
{
string sarr[] =
{
"Alpha", "bravo", "charley", "delta", "echo", "echo",
"foxtrot", "golf"
};
auto last = end(sarr); // see the 'begin / end' section
string *result = adjacent_find(sarr, last);
cout << *result << '\n';
result = adjacent_find(++result, last);
cout << "Second time, starting from the next position:\n" <<
(
result == last ?
"** No more adjacent equal elements **"
:
"*result"
) << '\n';
size_t iv[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
size_t *ires = adjacent_find(iv, end(iv), squaresDiff10);
cout <<
"The first numbers for which the squares differ at least 10: "
<< *ires << " and " << *(ires + 1) << '\n';
}
// Displays:
//
// echo
// Second time, starting from the next position:
// ** No more adjacent equal elements **
// The first numbers for which the squares differ at least 10: 5 and 6
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