maps in c++ Code Example

map c++

cpp by Passionate Amoeba

on Aug 22 2020 Donate

2

#include <iostream>
#include <string>
#include <map>

using std::string;
using std::map;

int main() {
	// A new map
  	map<string, int> myMap {
		{"one", 1},
    	{"two", 2},
    	{"three", 3}
  	};

  	// Print map contents with a range-based for loop
    // (works in C++11 or higher)
  	for (auto& iter: myMap) {
    	std::cout << iter.first << ": " << iter.second << std::endl;  
  	}
}

map of maps c++

cpp by Hilarious Hyena on Aug 19 2020 Donate

1

map <typename,map<typename,typename>> mp;
map[key1][key2]=values

basic ex of maps in c++

cpp by Worrisome Wombat on Jun 12 2020 Donate

0

#include <iostream> 
#include <iterator> 
#include <map> 
   
using namespace std; 
   
int main() 
{ 
     map<int, int> marks; 
     marks.insert(pair<int, int>(160, 42)); 
     marks.insert(pair<int, int>(161, 30)); 
     marks.insert(pair<int, int>(162, 40)); 
     marks.insert(pair<int, int>(163, 50)); 
     marks.insert(pair<int, int>(164, 31)); 
     marks.insert(pair<int, int>(165, 12)); 
     marks.insert(pair<int, int>(166, 34)); 
   
     map<int, int>::iterator itr; 
     cout << "nThe map marks is : n"; 
     cout << "ROLL NO.tMarksn"; 
     for (itr =  marks.begin(); itr !=  marks.end(); ++itr) { 
        cout  << itr->first 
             << "t   t" << itr->second << 'n'; 
     } 
     cout << endl; 
     return 0;     
  }

Source: www.edureka.co

map in cpp

cpp by Zany Zebra on Nov 11 2020 Donate

0

#include <map>

int main(){
  //new map
  std::map <int,int> myMap;
  myMap[0] = 1;
  myMap[1] = 2;
  myMap[2] = 3;
  myMap[3] = 4;
}

map in c++

cpp by Weary Wolf on Dec 04 2020 Donate

0

#include <bits/stdc++.h>
#include <iostream>
#include <map>
using namespace std;
void mapDemo(){
	map<int, int> A;
	A[1] = 100;
	A[2] = -1;
	A[3] = 200;
	A[100000232] = 1;
	//to find the value of a key
	//A.find(key)
	
	//to delete the key
	//A.erase(key)
	
	map<char, int> cnt;
	string x = "Sumant Tirkey";
	
	for(char c:x){
		cnt[c]++;//map the individual character with it's occurance_Xtimes
	}
	
	//see  how many times a and z occures in my name
	cout<< cnt['a']<<" "<<cnt['z']<<endl;
	
} 
	
int main() {
	mapDemo();
	return 0;
}

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