pair_stl.txt

#include<iostream>
#include<utility>
using namespace std;
int main()
{
	pair<int, char> PAIR1;
	PAIR1.first =100;
	PAIR1.second='G';
cout<<PAIR1.first<<" "<<PAIR1.second<<endl;//100 G
pair<string, double>PAIR2("anshu",79.9);
cout<<PAIR2.first<<" "<<PAIR2.second<<endl;//anshu,79.9

pair<string,double>PAIR3;
PAIR3=make_pair("krishna", 90.3);
cout<<PAIR3.first<<" "<<PAIR3.second<<endl;//krishna,90.3

pair<int, int> pair1 = make_pair(1, 19);
pair<int, int> pair2 = make_pair(2, 7);

//we copied pair2 data in pair3 data
pair<int, int>pair3(pair2);

cout<<pair1.first<<" "<<pair1.second<<endl;//1,19
cout<<pair3.first<<" "<<pair3.second<<endl;//2,7
 
//we can compare data in pair
cout<<(pair1==pair2)<<endl; //0 will be the output as it is false
cout<<(pair1<=pair2)<<endl; //1 as it is true first element is greater
cout<<(pair1>=pair2)<<endl; //0 as it is false first element is smaller


}