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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 8: Dictionaries and Maps
  5. Discussions

Day 8: Dictionaries and Maps

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2716 Discussions

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  • mogaro
     + 1 comment

    Has anyone else had problems with test case 1 with C++? In the other test cases my code is fine

    This is my code in case someone tells me my error.

    int main() {
    map<string, string> mapa;
    string name, phone;
    int temp;
    
    cin >> temp;
    
    for (int i = 0; i < temp; i++) {
        cin >> name >> phone;
        
        mapa[name] = phone;
    }
     
    for (int i = 0; i < temp; i++) {
        cin >> name;
        
        if ( mapa.find(name) != mapa.end() ) {
            cout << name << "=" << mapa[name] << endl;
        } else {
            cout << "Not found\n";
        }
    } 
     
    return 0;
}

  • navinjoy
     + 0 comments

    Any toughts on why all the tests are Passed but getting Runtime error?

    if __name__ == '__main__':
    n = int(input())
my_dict = {}
for _ in range(n*2):
    s = str(input())
    if " " in s:
        nameAndPhone = s.split(" ")
        name = nameAndPhone[0]
        phone = nameAndPhone[1]
        my_dict[name] = phone
    else:
        if s in my_dict:
            print(f"{s}={my_dict[s]}")
        else:
            print("Not found")

  • shisui972201
     + 0 comments

    Here's what I have for Python 3:

    import sys

entries = int(input())
friends = {}

# The first n lines
for _ in range(entries):
    name, number = input().split(' ')
    friends[name] = number

# The remaining lines
for line in sys.stdin:
    name = line.strip()
    if name in friends:
        print(f"{name}={friends.get(name)}")
    else:
        print("Not found")

  • chetan_kumar96
     + 1 comment

    code in python

    n = int(input().strip())
my_contact = {}

# Store contacts
for _ in range(n):
    name, number = input().strip().split()
    my_contact[name.lower()] = int(number)

# Search contacts until EOF (End of Input)
try:
    while True:
        search_name = input().strip()
        key = search_name.lower()
        if key in my_contact:
            print(f"{search_name}={my_contact[key]}")
        else:
            print("Not found")
except EOFError:
    pass

  • jonah38
     + 0 comments

    JS solution

    function processData(input) {
    //Enter your code here
    const persArray = input.split('\n'); //get lines as array
    const nPpl = Number(persArray[0]); //first input line is nPpl
    var phonebook = new Map(); 
    
    for (let i = 1; i <= nPpl; i++){
        let details = persArray[i].split(' '); //get array [name,num]
        phonebook.set(details[0],details[1])
    }
    
    for (let i = nPpl + 1; i < persArray.length; i++){
        let person = persArray[i];
        let num = phonebook.get(person);
        if (num) {
            console.log(person + '=' + num)
        } else{console.log('Not found')}
    }
}