how to make dictionary of numbers in c++
// CPP Program to demonstrate the implementation in Map
#include <iostream>
#include <iterator>
#include <map>
using namespace std;
int main()
{
// empty map container
map<int, int> gquiz1;
// insert elements in random order
gquiz1.insert(pair<int, int>(1, 40));
gquiz1.insert(pair<int, int>(2, 30));
gquiz1.insert(pair<int, int>(3, 60));
gquiz1.insert(pair<int, int>(4, 20));
gquiz1.insert(pair<int, int>(5, 50));
gquiz1.insert(pair<int, int>(6, 50));
gquiz1.insert(pair<int, int>(7, 10));
// printing map gquiz1
map<int, int>::iterator itr;
cout << "nThe map gquiz1 is : n";
cout << "tKEYtELEMENTn";
for (itr = gquiz1.begin(); itr != gquiz1.end(); ++itr) {
cout << 't' << itr->first << 't' << itr->second
<< 'n';
}
cout << endl;
// assigning the elements from gquiz1 to gquiz2
map<int, int> gquiz2(gquiz1.begin(), gquiz1.end());
// print all elements of the map gquiz2
cout << "nThe map gquiz2 after"
<< " assign from gquiz1 is : n";
cout << "tKEYtELEMENTn";
for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
cout << 't' << itr->first << 't' << itr->second
<< 'n';
}
cout << endl;
// remove all elements up to
// element with key=3 in gquiz2
cout << "ngquiz2 after removal of"
" elements less than key=3 : n";
cout << "tKEYtELEMENTn";
gquiz2.erase(gquiz2.begin(), gquiz2.find(3));
for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
cout << 't' << itr->first << 't' << itr->second
<< 'n';
}
// remove all elements with key = 4
int num;
num = gquiz2.erase(4);
cout << "ngquiz2.erase(4) : ";
cout << num << " removed n";
cout << "tKEYtELEMENTn";
for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
cout << 't' << itr->first << 't' << itr->second
<< 'n';
}
cout << endl;
// lower bound and upper bound for map gquiz1 key = 5
cout << "gquiz1.lower_bound(5) : "
<< "tKEY = ";
cout << gquiz1.lower_bound(5)->first << 't';
cout << "tELEMENT = " << gquiz1.lower_bound(5)->second
<< endl;
cout << "gquiz1.upper_bound(5) : "
<< "tKEY = ";
cout << gquiz1.upper_bound(5)->first << 't';
cout << "tELEMENT = " << gquiz1.upper_bound(5)->second
<< endl;
return 0;
}