I'm trying to understand why this won't work, the output i get is a list of even numbers. I'm trying to get all prime numbers below the number thats scanned in.
#include <stdio.h>
int isPrime(int number);
int main(){
[Code]....
This program prints out the total number of up to 100,000. How to do is to print out the number of twin primes up to 100,000. Is it as simple as adding an if statement "if(primesList[j] - i == 2)"?
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
int main() {
int primesCount = 0;
[Code] ......
I'm having some trouble finishing my code, it's meant to give the number of twin primes between an interval e.g. 1 to 1000000 and the answer should be 8169 but all I can get it to is 8168
#include <stdio.h>
int prime (int num) {
int div;
if (num == 2) return 1;
if (num % 2 == 0) return 0;
div = 3;
while (div*div <= num) {
[code]....
For example if I have typed 0xFF (a literal hex number that represents the value 255 for Unsigned Char or -1 for Signed Char) in part of my program. That 0xFF is treated as a Char not an Int, because the value is within the range supported by Char, the C compiler always tries to use the smallest datatype possible for the number that is needed for a literal value like this.
Unfortunately because Signed Char is the default Char type, 0xFF is translated into -1. I am wanting to use it to represent 255. So I'm trying to tell the compiler that 0xFF should be interpreted as either an Int or an Unsigned Char. How do I do this?
I already tried typing it with the magic letter "I", like this: 0xFFI
But that didn't work. What is the correct way to do this?
i cant figure out what im doing wrong with my bubble sort. when i cout the sorted test scores, the first number(testScore[0])this is the code.
#include <iostream>
using namespace std;
int main()
{
[Code]....
I am writing a game that is 2 to 4 players. i am wondering how to ask how many players, and make the score stay with each player. it is a rip off of zombie dice, this is what i have so far the playerScore array is to hold the score for each player and the turn array is hold hold the values that they rolled that turn, i also dont know how to clear out the turn array when it goes to the next player.
#include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
using namespace std;
int main() {
int playerScore[4];
[Code] ....
I'm a beginner in C and system programming. I need to use multiple process and POSIX shared memory to find all primes between 0 and 100. My code compiles, but the result is not correct, it shows all the multiples of 3 as primes.My instructor also mentioned that the multi-process portion will fork() the appropriate number of child processes. The parent process will create a POSIX shared memory object to which the sub-processes will attach. I am confused about the things he said about parent process.why I'm not getting the right primes?
Code:
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/mman.h>
[Code]....
What's actually wrong with the program....I'm trying to print the primes in limit of L1 and L2 ;L1<L2.... */
Code:
#include<stdio.h>
#include<math.h>
void main(){
int L1,L2,n=0
printf("Enter Limits by a space:
}
[code]....
I have to find the sum of primes below limit. My program works fine when I try to find primes less than 10. However, when I run it for the sum of primes less than 100, I get 166337 when I am supposed to get 1060. My program works on modular arithmetic, where any prime greater than 3 can be expressed as 1 or 5 mod 6.
Here is my code:
#include <iostream>
using namespace std;
int main(){
unsigned long long prime, sum;
int limit = 100;
[Code] ....
OUTPUT:
SUM: 166337
I know there is a function for comparing string but i am making it to just improve my concepts.error : 2 is coming as answer when i put same sting in both place.
Code:
#include<stdio.h>
main()
{
char str1[] = "hello" ;
char str2[]= "hello" ;
int q;
q = xstrcmp(str1,str2);
printf("%d",q);
}
[code]....
Write following functions
makingArray: this function will return a double pointer which points to a double array and take one parameter- an integer variable which has a default argument of 5. The argument is the size of the integer array. when the function is called, the users input or default argument will be used for the size of the array. The function will initialize all elements of the array with the 'cin' object.
getTotal: this function will return a double and take two parameters- a double array, which can NOT be modified by this function, and an integer variable for a size of the array. This function will calculate the total of all elements then return a double number which is the total.
main: demonstrate functions( makingArray and getTotal) by calling them in a program
I'm trying to write a program that will find all the factors and primes for a range of numbers. I have the inner loop working but I am having trouble writing the outer loop that will output the range of numbers instead of just finding the factors for one number.
int n1 = 0;
int n2;
int factor = 0;
cout << "Enter a starting number: ";
cin >> n1;
cout << "Enter a ending number: ";
[Code] ....
I have to make a calculator program that has 5 different functions (this is obviously the easy part, once all the input is assigned to their respective variables), which are addition, subtraction, mod, multiplication and division (negatives are not allowed, and must be error-checked; spaces must be ignored). I need to take the equation from the user, echo it back and then solve the problem.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <math.h>
[Code].....
I need to make a program which solove difference between two interested times in format hh:mm i made it but it doesn't give me right answers for all times for example it can't solve times like 23:50 and 0:15 and it says that difference is 23:35 and no 00:25
View 3 Replies View RelatedLets say I have my name "Kevin".
What would the program be so it reads "niveK"?
How to write the program for that?
I have a program that makes change from an amount. It works fine, but the output is the correct output looped over and over. I have tried everything, but it still doesn't work. For example, a amount of 98 should print
3 quarters
2 dimes
0 nickles
3 pennies
but instead it prints
3 quarters
2 dimes
0 nickels
3 pennies
0 quarters
2 dimes
0 nickels
3 pennies
0 quarters
2 dimes
0 nickels
3 pennies
Why it's doing this?
Code:
#include <iostream>
using namespace std;
int coinscount(int& amount, int value) {
int tracker = 0;
int amountdimes = amount;
[Code].....
I need to write a program that will allow the user to enter a number "n" and the program tell you that the nth prime number is .....
EXAMPLE
user enters 55
printf("The 55th prime number is %i", variable");
In the c pgm to find number of digits , if I am giving 001 as the input number ,why I am not getting the no. of digits as 3?
View 2 Replies View Relatedi wrote this program to display even number from 100-200. But visual c gives me this error with undeling the "a" in if statement. Error1error C2106: '=' : left operand must be l-value
#include<iostream>
#include<conio.h>
using namespace std;
void main(){
for(int a=100;a<200;a++){
if(a%2=0)
cout<<a<<endl;
}
_getch();
}
I could not find the mistake in this program....
Code:
//cpp program to check whether a number is palindrome or not
#include<iostream.h>
#include<conio.h>
//the class
class palindrome
[Code] ....
#include <iostream>
#include <conio.h>
#include <iostream>
[Code].....
I can't find a way to square and cube the number I want, which the number will show in the notepad. Is there a way to cube and square a number in my program??
i wanna no if i can make the program generate a different number everytime you guess the number right and want to play again. it always generates the same number
#include <iostream>
#include <ctime>
#include <cstdlib>
[Code].....
#include <stdio.h>
#include <iostream>
#include <cstdlib>
[Code]....
I'm trying to create a program that loops "x" number of times, where "x" is going to be a user-input number.
View 2 Replies View RelatedI'm trying to run a factorial program but I'm getting the error statement has not effect.
here's the code
#include <iostream>
using namespace std;
int main() {
int fac = 0;
int sum = 0;
[Code] ....
the error happened in the int main section
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
[Code]....
when running the program it closses after the switch.