map in cpp

Solutions on MaxInterview for map in cpp by the best coders in the world

showing results for - "map in cpp"
Nele
06 Feb 2016
1#include <iostream>
2#include <string>
3#include <map>
4
5using std::string;
6using std::map;
7
8int main() {
9	// A new map
10  	map<string, int> myMap = { // This equals sign is optional
11		{"one", 1},
12    	{"two", 2},
13    	{"three", 3}
14  	};
15
16  	// Print map contents with a range-based for loop
17    // (works in C++11 or higher)
18  	for (auto& iter: myMap) {
19    	std::cout << iter.first << ": " << iter.second << std::endl;  
20  	}
21}
Niko
24 Jul 2016
1//Since c++17
2for (auto& [key, value]: myMap) {
3    cout << key << " has value " << value << endl;
4}
5//Since c++11
6for (auto& kv : myMap) {
7    cout << kv.first << " has value " << kv.second << endl;
8}
Laura
05 Jul 2019
1#include<bits/stdc++.h>
2using namespace std;
3
4int main()
5{
6  map<string,int>mapa;
7  for(int i=0;i<10;i++){
8    int x;
9    string s;
10    cin>>x>>s;
11    mapa.insert({s,x});
12    }
13  for(auto [x,y]:mapa){
14    cout<<x<<" "<<y<<'\n';
15  }
16}
Bruce
03 Jun 2016
1#include <map>
2
3// empty map container 
4map<int, int> gquiz1; 
5  
6// insert elements in random order 
7gquiz1.insert(pair<int, int>(1, 40)); 
Santino
06 Jul 2016
1#include <bits/stdc++.h>
2#include <iostream>
3#include <map>
4using namespace std;
5void mapDemo(){
6	map<int, int> A;
7	A[1] = 100;
8	A[2] = -1;
9	A[3] = 200;
10	A[100000232] = 1;
11	//to find the value of a key
12	//A.find(key)
13	
14	//to delete the key
15	//A.erase(key)
16	
17	map<char, int> cnt;
18	string x = "Sumant Tirkey";
19	
20	for(char c:x){
21		cnt[c]++;//map the individual character with it's occurance_Xtimes
22	}
23	
24	//see  how many times a and z occures in my name
25	cout<< cnt['a']<<" "<<cnt['z']<<endl;
26	
27} 
28	
29int main() {
30	mapDemo();
31	return 0;
32}
Claudia
08 Oct 2019
1#include <map>
2
3int main(){
4  //new map
5  std::map <int,int> myMap;
6  myMap[0] = 1;
7  myMap[1] = 2;
8  myMap[2] = 3;
9  myMap[3] = 4;
10}
queries leading to this page
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