Array Assignment 1 All

Question:1
#include <iostream>

using namespace std;

int main()
{
  int a;
  cout<<"Plsease inter the array size : ";
  cin>>a;
  int arr[a];

  cout<<"enter the array input : "<< endl;

  for(int i=0;i<a ;i++){

    cin>>arr[i];
  }
  cout<<endl;


  for(int j=0;j<a; j++){

    cout<<arr[j];
    cout<<" ";
  }

  cout<<endl;

  for(int k=(a-1);k>=0; k--){

    cout<<arr[k];
    cout<<" ";
  }

    return 0;
}

Question:1 End--------------------------------------------------------------------------------------------------------------

Question:2

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{

  int arr[100];
  int big=0,small=100,sum=0;
    srand(time(0));
  for(int i=0;i<100; i++){
    arr[i]=rand()%100;
  }

  for(int j=0;j<100; j++){
        {
   if( big<arr[j])
    big=arr[j];
  }
  if( small>arr[j])
    small=arr[j];
  }

  cout<<"100 random integers  :"<<endl;
  for(int k=0;k<100; k++){
    cout<<arr[k]<<" ";
    sum=sum+arr[k];

  }

  double avg=0,s=sum;
  avg=s/100;
  cout<<endl;
   cout<<"Largest value : "<<big<<endl;
   cout<<"Smallest value : "<<small<<endl;
   cout<<"average value : "<<avg<<endl;



    return 0;
}

Question:2 End-----------------------------------------------------------------------------------------------

Question:3

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{

  int arr[25],a,b;
  cout<<"input the first number : ";
  cin>>a;
   cout<<"input the second number (2nd num > 1st num) : ";
   cin>>b;
    srand(time(0));
  for(int i=1;i<=25; i++){
           int srand = rand()%(b-a + 1) + a;
            arr[i]=srand;
            cout<<arr[i]<<" ";
   }
    return 0;
}

Question:3 end-----------------------------------------------------------------------------------------------

Question:4

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
int a,b,c;
int x=0;
cout<<"print array size : ";
cin>>a;
int arr[a];

 srand(time(0));
  for(int i=0;i<a; i++){
    arr[i]=rand()%10;
  }

  for(int k=0;k<a; k++){
    cout<<arr[k]<<" ";

  }
cout<<endl;
  cout<<"Input the number to Search in the array : ";
  cin>>b;

 for (int j=0;j<=a;j++) {
                //x=counter
            if (arr[j]==b){
                    cout<<"The number found in index "<<j<<endl;
                    x++;
        }

 }

        cout<<"and the number was found : "<<x<<" times ";


    return 0;
}

Question : 4 end-----------------------------------------------------------------------------------------

Question : 5

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
int a,b,c,t;
float arr[5],arr2[5];

 srand(time(0));
  for(int i=0;i<5; i++){
    arr[i]=rand()%10;
    arr2[i]=rand()%10;
  }
cout<<"first array before sorting : ";
  for(int k=0;k<5; k++){
    cout<<arr[k]<<" ";
  }
  cout<<endl;
  cout<<"second array before sorting : ";
  for(int k=0;k<5; k++){
    cout<<arr2[k]<<" ";
  }
  cout<<endl;
  for(int k=0;k<5; k++){
        for(int j=k+1;j<5;j++){
            if(arr[k]>arr[j]){
                 t= arr[k];
                arr[k] = arr[j];
                arr[j] = t;
        }
  }}
  cout<<"first array in ascending order : ";
  for(int k=0;k<5; k++){
   cout <<arr[k]<<" ";
  }
  for(int k=0;k<5; k++){
        for(int j=k+1;j<5;j++){
            if(arr2[k]<arr2[j]){
                 t= arr2[k];
                arr2[k] = arr2[j];
                arr2[j] = t;
        }
  }
  }cout<<endl;
  cout<<"Second array in descending order : ";
  for(int k=0;k<5; k++){
    cout<<arr2[k]<<" ";
  }
    return 0;
}

Question : 5 end-------------------------------------------------------------------------------------------

Question : 6

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
int arr[10],a=1,b,c,d=1,i=0;

cout<<"insert 10 array input : "<<endl;
for(int i=0;i<10;i++){
    cin>>arr[i];
}
 for (int i = 0; i < 10; i++)

  if (a == 1 || d == 1) {
    if (arr[i] < arr[i+1])
      d = 0;
    else if (arr[i] > arr[i+1])
      a = 0;
  }

  if (a == 1)
    cout<<"The array is sorted in ascending order";
  else if (d == 1)
    cout<<"The array is sorted in descending order ";
  else
    cout<<"The array is not sorted ";
    return 0;
}

Question : 6 end -----------------------------------------------------------------------------------------

Question : 7

#include<iostream>
#include<conio.h>
#include <bits/stdc++.h>
using namespace std;
int main()
{

    float arr[11];
    int big=0,big1=0,small=10,small1=0,t=0;
    float mid=11/2;
    float median;
srand(time(0));
  for(int i=0;i<11; i++){
    arr[i]=rand()%10;
    cout<<arr[i]<<" ";
  }

   for(int i=0;i<11; i++){
    if(big<arr[i]){
        big=arr[i];
    }

    if(small>arr[i]){
        small=arr[i];
    }
   }

  for(int i=0;i<11; i++){
    if(big1<arr[i] && big>arr[i] ){
        big1=arr[i];
    }

    if(big1>arr[i] && small!=arr[i]){
        small1=arr[i];
    }

  }
  for(int k=0;k<11; k++){
        for(int j=k+1;j<11;j++){
            if(arr[k]>arr[j]){
                 t= arr[k];
                arr[k] = arr[j];
                arr[j] = t;
        }
  }}
  {

       median = (arr[(11-1)/2]+arr[11/2])/2.0;



    }


  cout<<endl;
  cout<<"First minimun "<<small<<endl;
  cout<<"Second mimunum "<<small1<<endl;
  cout<<"First maximum "<<big<<endl;
  cout<<"Second Maximum "<<big1<<endl;
   cout << "The median is: " << median << endl;


    return 0;
}


Question : 7 end------------------------------------------------------------------------------------------------------

Question : 8

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
    int arr[10],evenArr[10],oddArr[10],a=0,b=0,c,even=0,evenArr1[10],counter=0;

srand(time(0));
  for(int i=0;i<10; i++){
    arr[i]=rand()%10;
  cout<<arr[i]<<" ";
  }
  cout<<endl;
  for(int i=0;i<10;i++)

  {
      if(arr[i]%2==0){
             evenArr[a]=arr[i];
             a++;
      }
      if(arr[i]%2!=0){
             oddArr[b]=arr[i];
             b++;
      }
      }
  cout<<endl;

  for(int i=0;i<a;i++){
    cout<<evenArr[i]<<" ";
  }
  cout<<endl;
  for(int i=0;i<b;i++){
    cout<<oddArr[i]<<" ";
  }

    return 0;
}

Question  : 8 end-----------------------------------------------------------------------------------------

Question :9

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{

    int arr[100],i,n;
    cout<<"Enter a Number :";
    cin>>n;

    arr[0]=0;
    arr[1]=1;

    for(i=2;i<n;i++)
      arr[i]=arr[i-1]+arr[i-2];

    cout<<"So the "<<n<<" Fibonaccii numbers are:"<<endl;
    for (i=0;i<n;i++)
    cout<<arr[i]<<" ";

    return 0;
}

Question :9 end-----------------------------------------------------------------------------------------------

Question :10

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
  int i,s=0,j,p;

  int arr[10];
   srand(time(0));
  for(int i=0;i<10; i++){
    arr[i]=rand()%100;
    cout<<arr[i]<<" ";
  }
cout<<endl;
for (i = 0; i < 10; i++) {
        j = 2;
        p = 1;
        while (j < arr[i]) {
            if (arr[i] % j == 0) {
                p = 0;
                break;
            }
            j++;
        }
        if (p == 1) {
            cout << arr[i] << " ";
                    s++;
        }
    }
    cout<<"prime number count : "<<s;

  return 0;
}

Question : 10 end-----------------------------------------------------------------------------------------------

Question : 11

#include <iostream>
using namespace std;
int main()
{
int a[10], n, i,j;
cout<<"Input the  number You want to convert ";
cin>>n;
j=n;
for(i=0; n>0; i++)
{
a[i]=n%2;
n= n/2;
}
cout<<"Binary number of "<<j<<" = ";
for(i=i-1 ;i>=0 ;i--)
{
cout<<a[i];
}
return 0;
}

Question: 11 end---------------------------------------------------------------------------------------------------

Question: 12

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int arr[10],a,b,c,j;
srand(time(0));
  for(int i=0;i<10; i++){
    arr[i]=rand()%10;

    cout<<arr[i]<<" ";
  }
  cout<<endl;
  cout<<endl;
    int result = 0;
    for (int i=0; i<10; i++){
      for  (int j=0;j<10;j++){
                if (arr[i] == arr[j])
                    result++;
        }
        cout<<arr[i]<<" was found "<<result<<" times"<<endl;
        result=0;
    }




return 0;
}

Question : 12 end---------------------------------------------------------------------------------------------------------

Question :13



#include <iostream>
#include <bits/stdc++.h>
using namespace std;

const int R=5;
const int C=3;

int main() {
    int r=0, c=0;
    int arr[R][C];

    srand(time(0));
    for (r=0; r<R; r++)
         for (c=0;c<C;c++)
               arr[r][c]=rand()%(50-30 + 1) + 30;


    for (c=0;c<C;c++) {
         for (r=0;r<R;r++){
              cout << arr[c][r] << endl;
         }
        cout << endl;
    }

    return 0;
}


Question :13 end-------------------------------------------------------------------------------------------------------