Write a function that, given two maps, yields a map with all key/value associations that are common to both maps. That is, the same key must map to the same value in both maps. Complete the following file:

#include #include

using namespace std;

/** Returns a new map with common key-value pairs. @param map1 the first map to compare @param map2 the second map to compare @return a map containing entries common to both maps */ map get_common(map map1, map map2) { map common;

........

return common; }