Commit f4e800b

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add method 2

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+11

-8

lines changed

+11

-8

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Lines changed: 11 additions & 8 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,21 +1,24 @@`
`1`	`1`	`#include <iostream>`
`2`	`2`	`#include <map>`
`3`	`3`
`4`		`-using namespace std;`
	`4`	`+int main() {`
	`5`	`+ std::map<char, int> m;`
`5`	`6`
`6`		`-int main()`
`7`		`-{`
`8`		`- map<char, int> m;`
`9`		`-`
`10`	`7`	`m['a'] = 2;`
`11`	`8`	`m['b'] = 5;`
`12`	`9`	`m['c'] = 8;`
`13`	`10`
`14`		`- //https://stackoverflow.com/questions/1063453/how-to-display-map-contents`
`15`		`- for (const auto &p : m) {`
	`11`	`+ // Method 1`
	`12`	`+ // https://stackoverflow.com/questions/1063453/how-to-display-map-contents`
	`13`	`+ for(const auto &p : m) {`
`16`	`14`	`std::cout << "m[" << p.first << "] = " << p.second << '\n';`
`17`	`15`	`}`
`18`	`16`
	`17`	`+ // Method 2`
	`18`	`+ // https://stackoverflow.com/questions/1443793/iterate-keys-in-a-c-map`
	`19`	`+ for(const auto &[key, value] : m) {`
	`20`	`+ std::cout << "m[" << key << "] = " << value << '\n';`
	`21`	`+ }`
	`22`	`+`
`19`	`23`	`return 0;`
`20`	`24`	`}`
`21`		`-`

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