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cs-142:maps-and-sets [2015/12/08 16:18] kseppi |
cs-142:maps-and-sets [2015/12/08 16:19] (current) kseppi |
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| Line 102: | Line 102: | ||
| Modern version: | Modern version: | ||
| <code c++> | <code c++> | ||
| + | #include <iostream> | ||
| + | #include <fstream> | ||
| + | #include <vector> | ||
| + | #include <sstream> | ||
| + | #include <string> | ||
| + | #include <map> | ||
| + | #include <set> | ||
| + | |||
| + | using namespace std; | ||
| + | |||
| + | int main() | ||
| + | { | ||
| + | map<string, double> scores; | ||
| + | scores["Tom"] = 90; | ||
| + | scores["Diana"] = 86; | ||
| + | scores["Harry"] = 100; | ||
| + | cout << "Diana " << scores["Diana"] << endl; | ||
| + | |||
| + | |||
| + | map<string, vector<string>> food; | ||
| + | vector<string> mark_diet; | ||
| + | mark_diet.push_back("Spagetti"); | ||
| + | mark_diet.push_back("Mac and Cheese"); | ||
| + | mark_diet.push_back("Hogies"); | ||
| + | mark_diet.push_back("Bagels"); | ||
| + | food["Mark"] = mark_diet; | ||
| + | vector<string> kevin_diet; | ||
| + | kevin_diet.push_back("Steak"); | ||
| + | mark_diet.push_back("Steak"); | ||
| + | kevin_diet.push_back("Rice Bread"); | ||
| + | kevin_diet.push_back("Steak"); | ||
| + | kevin_diet.push_back("Salad"); | ||
| + | food["Kevin"] = kevin_diet; | ||
| + | food["Joe"].push_back("bbq"); | ||
| + | food["Joe"].push_back("fries"); | ||
| + | |||
| + | cout << "Let's look at who is in the food map:\n"; | ||
| + | for (map<string, vector<string>>::iterator eater = food.begin(); eater != food.end(); eater++) { | ||
| + | cout << eater->first << endl; | ||
| + | } | ||
| + | cout << "Let's look at the entire food map:\n"; | ||
| + | for (map<string, vector<string>>::iterator eater = food.begin(); eater != food.end(); eater++) { | ||
| + | cout << eater->first << " can eat:\n"; | ||
| + | for (vector<string>::iterator food_it = eater->second.begin(); food_it != eater->second.end(); food_it++) { | ||
| + | cout << *food_it << " "; | ||
| + | } | ||
| + | cout << endl; | ||
| + | } | ||
| + | cout << "Let's look at the entire food map: (easier)\n"; | ||
| + | for (auto eater : food) { | ||
| + | cout << eater.first << " can eat:\n"; | ||
| + | for (auto food_it : eater.second) { | ||
| + | cout << food_it << " "; | ||
| + | } | ||
| + | cout << endl; | ||
| + | } | ||
| + | |||
| + | |||
| + | |||
| + | // Lets pick a few random meals for Kevin | ||
| + | int menu; | ||
| + | for (int i = 0; i < 10; i++) { | ||
| + | menu = rand()%food["Kevin"].size(); | ||
| + | cout << "Picked Random Menu for Kevin " << menu << " " << food["Kevin"][menu] << endl; | ||
| + | } | ||
| + | |||
| + | menu = rand()%food["Mark"].size(); | ||
| + | cout << "Picked Random Menu for Mark " << menu << " " << food["Mark"][menu] << endl; | ||
| + | |||
| + | // Now lets look at sets | ||
| + | cout << "\nSET:\n"; | ||
| + | set <string> foodstuff; | ||
| + | foodstuff.insert("Steak"); | ||
| + | foodstuff.insert("Steak"); | ||
| + | foodstuff.insert("Steak"); | ||
| + | foodstuff.insert("Steak"); | ||
| + | foodstuff.insert("Spagetti"); | ||
| + | foodstuff.insert("Spagetti"); | ||
| + | foodstuff.insert("Spagetti"); | ||
| + | foodstuff.insert("Toast"); | ||
| + | foodstuff.insert("Toast"); | ||
| + | for (set <string>::iterator nm = foodstuff.begin(); nm != foodstuff.end(); nm++) { | ||
| + | cout << *nm << endl; | ||
| + | } | ||
| + | cout << "easier\n"; | ||
| for (auto nm : foodstuff) { | for (auto nm : foodstuff) { | ||
| cout << nm << endl; | cout << nm << endl; | ||
| } | } | ||
| + | cout << "Count for Steak " << foodstuff.count("Steak") << endl; | ||
| + | cout << "Count for Brats " << foodstuff.count("Brats") << endl; | ||
| + | cout << "\nSET:\n"; | ||
| + | multiset <string> foodstuff2; | ||
| + | foodstuff2.insert("Steak"); | ||
| + | foodstuff2.insert("Steak"); | ||
| + | foodstuff2.insert("Steak"); | ||
| + | foodstuff2.insert("Steak"); | ||
| + | foodstuff2.insert("Spagetti"); | ||
| + | foodstuff2.insert("Spagetti"); | ||
| + | foodstuff2.insert("Spagetti"); | ||
| + | foodstuff2.insert("Toast"); | ||
| + | foodstuff2.insert("Toast"); | ||
| + | for (auto nm : foodstuff2) { | ||
| + | cout << nm << endl; | ||
| + | } | ||
| + | cout << "MultiCount for Steak " << foodstuff2.count("Steak") << endl; | ||
| + | cout << "MultiCount for Brats " << foodstuff2.count("Brats") << endl; | ||
| + | system("pause"); | ||
| + | } | ||
| </code> | </code> | ||
