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| 1 | +#include<iostream> |
| 2 | +#include<iterator> |
| 3 | +#include<map> |
| 4 | +using namespace std; |
| 5 | +int main () |
| 6 | +{ |
| 7 | + map<int, int> gquiz1; |
| 8 | + gquiz1.insert(pair<int, int>(1, 40)); |
| 9 | + gquiz1.insert(pair<int, int>(2, 30)); |
| 10 | + gquiz1.insert(pair<int, int>(3, 60)); |
| 11 | + gquiz1.insert(pair<int, int>(4, 20)); |
| 12 | + gquiz1.insert(pair<int, int>(5, 50)); |
| 13 | + gquiz1.insert(pair<int, int>(6, 50)); |
| 14 | + gquiz1.insert(pair<int, int>(7, 10)); |
| 15 | + |
| 16 | + map<int, int>::iterator itr; |
| 17 | + cout << "\nThe map gquiz1 is : \n"; |
| 18 | + cout << "\tKEY\tELEMENT\n"; |
| 19 | + for (itr = gquiz1.begin(); itr != gquiz1.end(); ++itr) { |
| 20 | + cout << '\t' << itr->first |
| 21 | + << '\t' << itr->second << '\n'; |
| 22 | + } |
| 23 | + cout << endl; |
| 24 | + // assigning the elements from gquiz1 to gquiz2 |
| 25 | + map<int, int> gquiz2(gquiz1.begin(), gquiz1.end()); |
| 26 | + |
| 27 | + // print all elements of the map gquiz2 |
| 28 | + cout << "\nThe map gquiz2 after" |
| 29 | + << " assign from gquiz1 is : \n"; |
| 30 | + cout << "\tKEY\tELEMENT\n"; |
| 31 | + for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) { |
| 32 | + cout << '\t' << itr->first |
| 33 | + << '\t' << itr->second << '\n'; |
| 34 | + } |
| 35 | + cout << endl; |
| 36 | + |
| 37 | + cout << "\ngquiz2 after removal of" |
| 38 | + " elements less than key=3 : \n"; |
| 39 | + cout << "\tKEY\tELEMENT\n"; |
| 40 | + gquiz2.erase(gquiz2.begin(), gquiz2.find(3)); |
| 41 | + for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) { |
| 42 | + cout << '\t' << itr->first |
| 43 | + << '\t' << itr->second << '\n'; |
| 44 | + } |
| 45 | + int num; |
| 46 | + num = gquiz2.erase(4); |
| 47 | + cout << "\ngquiz2.erase(4) : "; |
| 48 | + cout << num << " removed \n"; |
| 49 | + cout << "\tKEY\tELEMENT\n"; |
| 50 | + for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) { |
| 51 | + cout << '\t' << itr->first |
| 52 | + << '\t' << itr->second << '\n'; |
| 53 | + } |
| 54 | + |
| 55 | + cout << endl; |
| 56 | + |
| 57 | + cout << "gquiz1.lower_bound(5) : " |
| 58 | + << "\tKEY = "; |
| 59 | + cout << gquiz1.lower_bound(5)->first << '\t'; |
| 60 | + cout << "\tELEMENT = " |
| 61 | + << gquiz1.lower_bound(5)->second << endl; |
| 62 | + cout << "gquiz1.upper_bound(5) : " |
| 63 | + << "\tKEY = "; |
| 64 | + cout << gquiz1.upper_bound(5)->first << '\t'; |
| 65 | + cout << "\tELEMENT = " |
| 66 | + << gquiz1.upper_bound(5)->second << endl; |
| 67 | + |
| 68 | + |
| 69 | + return 0; |
| 70 | +} |
| 71 | + |
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