1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#include <iostream>
#include <vector>
// V. 1
template<class RandomIt>
void merge(RandomIt first1, RandomIt last1,
RandomIt first2, RandomIt last2,
RandomIt buff)
{
for (; first1 != last1; ++buff)
{
if (first2 == last2)
{
for (; first1 != last1; ++first1, ++buff)
*buff = *first1;
return;
}
if (*first2 < *first1)
{
*buff = *first2;
++first2;
}
else
{
*buff = *first1;
++first1;
}
}
for (; first2 != last2; ++first2, ++buff)
*buff = *first2;
}
// V. 2
template <class RandomIt>
void merge(RandomIt first1, RandomIt last1,
RandomIt first2, RandomIt last2,
RandomIt buff)
{
while (first1 != last1 && first2 != last2)
{
if (*first1 <= *first2)
{
*buff = *first1;
++first1;
}
else
{
*buff = *first2;
++first2;
}
++buff;
}
while (first1 != last1)
{
*buff = *first1;
++first1;
++buff;
}
while (first2 != last2)
{
*buff = *first2;
++first2;
++buff;
}
}
int main()
{
std::vector<int> v1;
for (int i = 1; i <= 5; i++)
v1.push_back(i);
for (int i = 3; i <= 8; i++)
v1.push_back(i);
std::vector<int> v(11);
merge(v1.begin(), v1.begin() + 5, v1.begin() + 5, v1.end(), v.begin());
for (int i = 0; i < 11; i++)
std::cout << v[i] << " ";
}
|
