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  1.     #include <iostream>
  2.     #include <string>
  3.     #include <map>
  4.     using namespace std;
  5.     class MapClass {
  6.     public:
  7.         static map<string, map<string, double>>        spreadMap;
  8.     };
  9.     //map<string, map<string, double>> MapClass::spreadMap = {
  10.     //    {"A", {{"B", 0}}},
  11.     //    {"C", {{"D", 1}}},
  12.     //    {"E", {{"F", 2}}}
  13.     //};
  14.     map<string, map<string, double>> MapClass::spreadMap  
  15.     {  // opening brace for the map of map 
  16.         {                // opening of a brace for a first element  
  17.           "A",           // first key  
  18.              {           // <<<<= opening brace for the first value wich is a map
  19.                {"B", 0}  // pair of key, value for the inner map
  20.              }           // <<<<= closing brace for the inner map
  21.         },               // closing of the brace for the first element 
  22.         {"C", {{"D", 1}}}, // second element with second map  
  23.         {"E", {{"F", 2},{"G",3}}}  // (the inner map could have itself several values...
  24.     }; // closing brace for the map of map
  25.  
  26.     int main() {
  27.     	// your code goes here
  28.     	return 0;
  29.     }
Success #stdin #stdout 0s 3412KB
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https://ideone.com/ta2vQ3
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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