#include <bits/stdc++.h>
using namespace std;
 
int main() {
	map<string, int> mpp; 
	mpp["raj"] = 27; 
	mpp["hima"] = 31; 
	mpp["praveer"] = 31;
	mpp.insert({"raj", 45}); 
 
	mpp.erase("raj"); // mpp.erase(key) 
	mpp.erase(mpp.begin()); // mpp.erase(iterator)
	mpp.clear(); // entire map is cleaned up
 
	auto it = mpp.find("raj"); // points to where raj lies 
	auto it2 = mpp.find("simran"); // points to end since she does not exists 
 
	if(mpp.find("raj") == mpp.end()) {
		cout << "raj not present"; 
	}
 
	return 0;
}
 

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