how to iterate over unordered_map c++
for(auto it : umap){
cout<< it->first << " " << it->second << endl;
}
/*
umap = [
{1 , "Hello"},
{2 , "world"}
]
*/
/*
Output :
1 Hello
2 World
*/
how to iterate over unordered_map c++
for(auto it : umap){
cout<< it->first << " " << it->second << endl;
}
/*
umap = [
{1 , "Hello"},
{2 , "world"}
]
*/
/*
Output :
1 Hello
2 World
*/
unordered_map c++
#include <bits/stdc++.h>
#include <iostream>
#include <map>
#include <unordered_map>
using namespace std;
int main() {
map<char, int> M; //based on balanced binary tree takes O(logn) access time
unordered_map<char, int> U; //uses hashing and accessing elements takes O(1)
//U.add(key,value);
//U.erase(key,value);
//map each letter to their occurance
string s = "Sumant Tirkey";
for (char c : s) {
M[c]++;
}
for (char c : s){
U[c]++;
}
return 0;
}
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