Traversing a map (or unordered_map) in C++ STL 我们可以使用以下不同的方式遍历 map 和unordered_map。 使用基于范围的for循环 地图 // CPP program to traverse a map using range // based for loop #include <bits/stdc++.h> using namespace std; int main() { int arr[] = { 1, 1, 2,...
unordered_map<string,int>umap; // inserting values by using [] operator umap["GeeksforGeeks"]=10; umap["Practice"]=20; umap["Contribute"]=30; // Traversing an unordered map for(autox:umap) cout<<x.first<<" "<<x.second<<endl; } 输出: Contribute30 GeeksforGeeks10 Practice20 unordere...
this I added all elements into hashmap , and then i tried to do some simple check , for each element inside hashmap , but , due to that or some other reason, its not able to traverse properly for all elements and sometimes traversing for elements which are not there in the map . Ca...
unordered_map<string,int>umap; // inserting values by using [] operator umap["GeeksforGeeks"]=10; umap["Practice"]=20; umap["Contribute"]=30; // Traversing an unordered map for(autox:umap) cout<<x.first<<" "<<x.second<<endl; } 输出: Contribute30 GeeksforGeeks10 Practice20 unordere...