Reverse all elements in a vector by using reverse
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
vector<int> v;
unsigned int i;
for(i=0; i<10; i++) v.push_back(i);
cout << "Initial: ";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
cout << endl;
reverse(v.begin(), v.end());
cout << "Reversed: ";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
return 0;
}Initial: 0 1 2 3 4 5 6 7 8 9
Reversed: 9 8 7 6 5 4 3 2 1 0
reverse an array
#include <iostream>
#include <algorithm>
using namespace std ;
int main(void)
{
double A[6] = { 1.2, 1.3, 1.4, 1.5, 1.6, 1.7 };
int i;
for (i = 0; i < 6; ++i)
cout << "A[" << i << "] = " << A[i] << " ";
cout << endl;
reverse(A, A + 6);
for (i = 0; i < 6; ++i)
cout << "A[" << i << "] = " << A[i] << " ";
cout << endl;
}Use merge with back_inserter
#include <iostream>
#include <string>
#include <list>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
int main( ) {
vector<string> v1, v2, v3;
v1.push_back("a");
v1.push_back("c");
v1.push_back("e");
v2.push_back("b");
v2.push_back("d");
v2.push_back("f");
v3.reserve(v1.size( ) + v2.size( ) + 1);
merge(v1.begin( ), v1.end( ),
v2.begin( ), v2.end( ),
back_inserter<vector<string> >(v3));
for(int i=0;i<6;i++){
cout << v3[i];
}
}abcdef"
