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Commit 210a4ff

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Create 06 Map.cpp
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‎src/cpp/STL/06 Map.cpp

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#include<iostream>
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#include<iterator>
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#include<map>
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using namespace std;
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int main ()
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{
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map<int, int> gquiz1;
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gquiz1.insert(pair<int, int>(1, 40));
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gquiz1.insert(pair<int, int>(2, 30));
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gquiz1.insert(pair<int, int>(3, 60));
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gquiz1.insert(pair<int, int>(4, 20));
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gquiz1.insert(pair<int, int>(5, 50));
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gquiz1.insert(pair<int, int>(6, 50));
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gquiz1.insert(pair<int, int>(7, 10));
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map<int, int>::iterator itr;
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cout << "\nThe map gquiz1 is : \n";
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cout << "\tKEY\tELEMENT\n";
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for (itr = gquiz1.begin(); itr != gquiz1.end(); ++itr) {
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cout << '\t' << itr->first
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<< '\t' << itr->second << '\n';
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}
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cout << endl;
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// assigning the elements from gquiz1 to gquiz2
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map<int, int> gquiz2(gquiz1.begin(), gquiz1.end());
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// print all elements of the map gquiz2
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cout << "\nThe map gquiz2 after"
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<< " assign from gquiz1 is : \n";
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cout << "\tKEY\tELEMENT\n";
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for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
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cout << '\t' << itr->first
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<< '\t' << itr->second << '\n';
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}
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cout << endl;
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cout << "\ngquiz2 after removal of"
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" elements less than key=3 : \n";
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cout << "\tKEY\tELEMENT\n";
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gquiz2.erase(gquiz2.begin(), gquiz2.find(3));
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for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
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cout << '\t' << itr->first
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<< '\t' << itr->second << '\n';
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}
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int num;
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num = gquiz2.erase(4);
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cout << "\ngquiz2.erase(4) : ";
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cout << num << " removed \n";
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cout << "\tKEY\tELEMENT\n";
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for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
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cout << '\t' << itr->first
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<< '\t' << itr->second << '\n';
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}
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cout << endl;
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cout << "gquiz1.lower_bound(5) : "
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<< "\tKEY = ";
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cout << gquiz1.lower_bound(5)->first << '\t';
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cout << "\tELEMENT = "
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<< gquiz1.lower_bound(5)->second << endl;
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cout << "gquiz1.upper_bound(5) : "
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<< "\tKEY = ";
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cout << gquiz1.upper_bound(5)->first << '\t';
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cout << "\tELEMENT = "
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<< gquiz1.upper_bound(5)->second << endl;
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return 0;
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}
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