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  1. Prepare
  2. C++
  3. Introduction
  4. Conditional Statements
  5. Discussions

Conditional Statements

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846 Discussions

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  • merwin_dev
     + 0 comments
    #include <iostream>
using namespace std;

int main() {
    int a;
    cin >> a;
    string name[] = {"0" , "one" , "two", "three" , "four", "five", "six", "seven", "eight", "nine"};
    if (a >= 1 and a <= 9) {
        cout << name[a];
    }
    else if (a > 9) {
        cout << "Greater than 9";
    }
    return 0;
}

  • adityacsc99
     + 0 comments

    include

    using namespace std;

    string ltrim(const string &); string rtrim(const string &);

    int main() { string n_temp; getline(cin, n_temp);

    int n = stoi(ltrim(rtrim(n_temp)));

// Write your code here
cout<<"Converted numner"<<n<<endl;

return 0;

    }

    string ltrim(const string &str) { string s(str);

    s.erase(
    s.begin(),
    find_if(s.begin(), s.end(), not1(ptr_fun<int, int>(isspace)))
);

return s;

    }

    string rtrim(const string &str) { string s(str);

    s.erase(
    find_if(s.rbegin(), s.rend(), not1(ptr_fun<int, int>(isspace))).base(),
    s.end()
); // can anyone solve this 


return s;

    }

  • Migueel0
     + 0 comments

    Sol using switch:

    int main()
{
    string n_temp;
    getline(cin, n_temp);

    int n = stoi(ltrim(rtrim(n_temp)));

    switch (n) {
        case 1:
            printf("one");
            break;
        case 2:
            printf("two");
            break;
        case 3:
            printf("three");
            break;
        case 4:
            printf("four");
            break;
        case 5:
            printf("five");
            break;
        case 6:
            printf("six");
            break;
        case 7:
            printf("seven");
            break;
        case 8:
            printf("eight");
            break;
        case 9:
            printf("nine");
            break;
        default:
            printf("Greater than 9");
    
    }

    return 0;
}

  • dangis_bakutis
     + 0 comments

    Exercise was ment to teach conditional statements, so I used them all without anything else which would be (cheating in my opinion).

    I changed input type int n to unsigned int n because of given constraints. It says that there can't be negative numbers, so we should use a proper type.

    I have put Greater than 9 condition before all other because it is more likely that user will input greater number than 9. This way we prevent 9 statement checks which will make code execute faster in most cases.

    This is the code:

    		unsigned int n = stoi(ltrim(rtrim(n_temp)));

		if (n > 9)
        cout << "Greater than 9";
    else if (n == 1)
        cout << "one";
    else if (n == 2)
        cout << "two";
    else if (n == 3)
        cout << "three";
    else if (n == 4)
        cout << "four";
    else if (n == 5)
        cout << "five";
    else if (n == 6)
        cout << "six";
    else if (n == 7)
        cout << "seven";
    else if (n == 8)
        cout << "eight";
    else
        cout << "nine";

  • ayjha2006
     + 0 comments

    include

    using namespace std; int main(){ int n; cin>>n;

    if(n==1){
    cout<<"one";
}
else if(n==2){
    cout<<"two";
}
else if(n==3){
    cout<<"three";
}
else if(n==4){
    cout<<"four";
}
else if(n==5){
    cout<<"five";
}
else if(n==6){
    cout<<"six";
}
else if(n==7){
    cout<<"seven";
}
else if(n==8){
    cout<<"eight";
}
else if(n==9){
    cout<<"nine";
}
else{
    cout<<"Greater than 9";
}
return 0;

    }