Inbuilt STL Algorithms & Lambda Function

(all_of, any_of, none_of, lamda function.) this are the functions .

 #include<bits/stdc++.h>

using namespace std;

int main(){

    cout<<[](int x){return x+2;}(2)<<endl;

    // cout<<[](int x,int y){return x+y;}(2)<<endl;

    vector<int>v={2,4,-6};

    cout<<all_of(v.begin(),v.end(),[](int x){return x>0;})<<endl;

    cout<<any_of(v.begin(),v.end(),[](int x){return x>0;})<<endl;

    cout<<none_of(v.begin(),v.end(),[](int x){return x==3;})<<endl;

   

}