HR30 Day 8: Dictionaries and Maps

1 개요

Day 8: Dictionaries and Maps

• https://www.hackerrank.com/challenges/30-dictionaries-and-maps/problem

해커랭크 30 Days of Code

문제	풀이
0-9 Day e
HR30 Day 0: Hello, World.
HR30 Day 1: Data Types
HR30 Day 2: Operators
HR30 Day 3: Intro to Conditional Statements
HR30 Day 4: Class vs. Instance
HR30 Day 5: Loops
HR30 Day 6: Let's Review
HR30 Day 7: Arrays
HR30 Day 8: Dictionaries and Maps
HR30 Day 9: Recursion

2 PHP

<?php
$stdin = fopen("php://stdin", "r");
$n = rtrim(fgets($stdin));
$phoneBook = [];
for($i=0; $i<$n; $i++) {
    list($k,$v) = explode(' ',rtrim(fgets($stdin)));
    $phoneBook[$k] = $v;
}
while( $k = rtrim(fgets($stdin)) ) {
    if( !array_key_exists($k,$phoneBook) ) {
        echo "Not found\n";
        continue;
    }
    echo $k.'='.$phoneBook[$k]."\n";
}