Associating a integer to string in a vector C++ - string

Question

I have a vector Type which contains 100 values: [ 'City', 'Town', 'City', 'City',......, 'Town']
I want to associate/ map each of the string's in this vector with an integer/ double 10 and 20.
My attempt at the same:
int s = 20;
int o = 10;
for (int q = 0; q < 100; q++) {
if (Type[q] == 'City') {
'City' == s;
}
else (Type[q] == 'Town'){
'Town' == o;
}
}
This does not work. I would appreciate any help on the topic.

Answer 1

You can use std::map<std::string, int> (or std::map<std::string, double>) like this:
std::vector<std::string> Type = { "City", "Town", "City", "City", "Town" };
std::map<std::string, int> m;
int s = 20;
int o = 10;
for (size_t q = 0; q < Type.size(); q++) {
if (Type[q] == "City") {
m["City"] = s;
}
else if (Type[q] == "Town") {
m["Town"] = o;
}
}
You'll get a map with two values:
{ "City": 20 }, { "Town": 10 }
If you want to have pairs or type and number you can use vector of pairs or tuples:
std::vector<std::tuple<std::string, int>> tuples(Type.size());
int s = 20;
int o = 10;
for (size_t q = 0; q < Type.size(); q++) {
if (Type[q] == "City") {
tuples[q] = std::make_tuple("City", s);
}
else if (Type[q] == "Town") {
tuples[q] = std::make_tuple("Town", o);
}
}
You'll get a vector with values:
{"City", 20 }, {"Town", 10 }, { "City", 20 }, { "City", 20 }, {"Town", 10 }