31 lines
869 B
C++
31 lines
869 B
C++
#include <iostream>
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#include <map>
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#include <string>
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#include <vector>
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#include <utility>
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using namespace std;
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int main() {
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// notice how the lists are nested to match the templates' parameters:
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map<string, vector<pair<string, int>>> name_languages_year {
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{"Dennis Ritchie", {{"B", 1969}, {"C", 1973}}},
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{"Niklaus Wirth", {{"Pascal", 1970}, {"Modula-2", 1973},
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{"Oberon", 1986}}},
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{"Bjarne Stroustrup", {{"C++", 1983}}},
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{"Walter Bright", {{"D", 1999}}}
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};
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// prints `Pascal':
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cout << name_languages_year["Niklaus Wirth"].at(0).first << endl;
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// adds a new entry to the map:
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name_languages_year["John McCarthy"] = {
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{"Lisp", 1958}
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};
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// prints 'Lisp':
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cout << name_languages_year["John McCarthy"].at(0).first << endl;
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}
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