Материал из C\C++ эксперт
Use lower_bound on vector
#include <iostream>
#include <cassert>
#include <algorithm>
#include <vector>
using namespace std;
int main()
{
vector<int> v(5);
bool found;
v[1] = 7; v[2] = 7; v[3] = 7; v[4] = 8;
vector<int>::iterator k;
k = lower_bound(v.begin(), v.end(), 7);
cout << *k;
return 0;
}7
Use upper_bound on vector
#include <iostream>
#include <cassert>
#include <algorithm>
#include <vector>
using namespace std;
int main()
{
vector<int> v(5);
bool found;
v[1] = 7; v[2] = 7; v[3] = 7; v[4] = 8;
vector<int>::iterator k;
k = upper_bound(v.begin(), v.end(), 7);
cout << *k;
return 0;
}8
