> pBallNums statement." />
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What is the most efficient way to test for duplicates in a user inputted array?


What is the most efficient way to test for duplicates in a user inputted array?

By : RobD
Date : October 25 2020, 07:10 AM
should help you out
"I basically just need it to alert the user if they've already entered a number into the array and offer another cin >> pBallNums statement."
code :
template< class... Args >
std::pair<iterator,bool> emplace( Args&&... args );
#include <iostream> 
#include <set>

int main()
{
    std::set<int> mySet;

    for(int loopCount{ 0 }; loopCount != 5; )// repeat until maximum loop count
    {
        int input; std::cin >> input; // user input
        // get the std::pair<iterator,bool>
        const auto pairIter = mySet.emplace(input);
        // increment maximum loop count, if insertion successful
        if (pairIter.second) ++loopCount;
    }
    for (const int userInput : mySet)
        std::cout << userInput << " ";

    return 0;
}
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User-Inputted hex into a hex array

User-Inputted hex into a hex array


By : nicky reid
Date : March 29 2020, 07:55 AM
wish help you to fix your issue What I need to do is the following.
code :
#include <iostream>
#include <string>
#include <cstdlib> // for strtol()
#include <cstdio>  // for printf()
#define countof(array) (sizeof(array)/sizeof(array[0]))

int main()
{
    std::string uHex;
    long arrayValues[4];
    for( int i = 0; i < countof(arrayValues); ++i )
    {
        std::cin >> uHex;
        char* end;
        arrayValues[i] = std::strtol(uHex.c_str(), &end, 16);
        // At this point, we expect end to be pointing at the '\0'
        // (the C-string nul terminator).  If it's not, then we have
        // invalid chars in our input, and arrayValues[i] is bogus.
        if (*end != '\0')
        {
           std::cout << "Invalid characters: \"" << uHex << "\" (please try again)\n";
           --i; // compensate for the ++i above to re-try this again
        }
    }

    for( int i = 0; i < countof(arrayValues); ++i )
    {
        std::cout << i << " --> " << arrayValues[i] << " --> "
                  << static_cast<char>(arrayValues[i]) << '\n';
//      std::printf("%d --> %d --> %c\n", i, arrayValues[i], arrayValues[i]);
    }
}
How to count duplicates of words/do case insensitive comparisons in user inputted text?

How to count duplicates of words/do case insensitive comparisons in user inputted text?


By : user2037036
Date : March 29 2020, 07:55 AM
this one helps. You can first convert the input String to lowercase to make the check case-insensitive. Then you can use a simple regular expression to count the matches of the words:
code :
import java.util.regex.Matcher;
import java.util.regex.Pattern;

...

public static String analyse(String text) {
   text = text.toLowerCase();
   int posCount = 0;
   int negCount = 0;
   String positive = "good|awesome";
   String negative = "bad|terrible";

   Pattern positivePattern = Pattern.compile(positive);
   Pattern negativePattern = Pattern.compile(negative);

   Matcher matcher = positivePattern.matcher(text);
   while(matcher.find()) {
       posCount++;
   }
   matcher = negativePattern.matcher(text);
   while(matcher.find()) {
       negCount++;
   }

   String res = Integer.toString(posCount);
   String res1 = Integer.toString(negCount);
   String result = (posCount+"P"+negCount+"N");

   return result;                       
}
How do I add a key (an integer inputted by user) and a value (inputted in a list by user) to a dictionary so I can refer

How do I add a key (an integer inputted by user) and a value (inputted in a list by user) to a dictionary so I can refer


By : Lohan
Date : March 29 2020, 07:55 AM
wish help you to fix your issue prodList[prod_id] = products
For what it's worth you have a dictonary and not a list so you might want to reflect that in your naming.
I want to print a name inputted by the user and some stars(inputted too) EXACTLY before and after the name

I want to print a name inputted by the user and some stars(inputted too) EXACTLY before and after the name


By : Dicky Kurniawan
Date : March 29 2020, 07:55 AM
hop of those help? You Could Well Do This First Make a char array , Containing Number Of Maximum Stars that will be asked to print.
code :
 char stars[] = "***************************************";
 int a;
 printf("Enter Number of Stars You Want To Print : ");
 scanf("%d" , &a);
 printf("%.*s\n" , a , stars);
check if array has the user inputted value

check if array has the user inputted value


By : user7224519
Date : March 29 2020, 07:55 AM
I hope this helps . I am using an input field to put user inputs in an array. , you can do
code :
if(oks.indexOf(num) != -1) 
var oks = [];
var oks = {};
// at a parent scope

if(e.keyCode === 43){

    var num = document.getElementById("numbers").value;
    // set num


    // check if num is in the oks array

    if( oks{num} != undefined ){

        alert("It is already there."); 

    }
    else{

        oks[num]=true;

    }

    console.log(oks.num);


}
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