reverse in stl code example
Example 1: c++ reverse vector
using namespace std;
int main()
{
vector<int> nums{4,1,2,1,2};
reverse(nums.begin(), nums.end());
return 0;
}
Example 2: string reverse stl
int main() {
string str = "foobarbaz";
reverse(str.begin(), str.end());
cout << str; // prints "zabraboof"
return 0;
}
Example 3: c++ reverse part of vector
//Reverse vector partially (from index x to index y)
reverse(v.begin()+x, v.begin()+y+1);
Example 4: std::reverse
std::vector<int> v{1,2,3};
std::reverse(std::begin(v), std::end(v));
Example 5: reverse a vector
vector<int> a = {1,2,3,4,5,6};
reverse(a.begin(), a.end());
Example 6: stl function to reverse an array
reverse(ar , ar + n) ; //ar is the array , n is the size