Question

second largest number in array

Answer 1

#include<stdio.h>
#include<stdlib.h>
#define INT_MIN 0

int main()
{
    int n, first, second, i;
    int arr[50];
   
    printf("Enter the number elements\r\n");
    scanf("%d", &n);

    printf("Enter the ARRAY elements\r\n");   
    for(i = 0; i < n; i++)
    {
        scanf("%d", &arr[i]);
    }
   
    if(n < 2)
    {
        printf("Invalid input!!!: Array should contain atleast two elements\r\n");
        return 0;
    }

    printf("The Array elements are:");
    for(i = 0; i < n; i++)
    {
        printf("%d ", arr[i]);
    }
   
   
    printf("\r\n");

   
    first = second = INT_MIN;
    for(i = 0; i < n; i++)
    {
        if(arr[i] > first)
        {
            second = first;
            first = arr[i];
        }
        else if(arr[i] > second && arr[i] != first)
        {
            second = arr[i];
        }
    }
   
    if(second == INT_MIN)
    {
        printf("There is no second largest elements in the ARRAY\r\n");
    }
    else
    {
        printf("The second largest element in the ARRAY is: %d\r\n", second);
    }
   
   
    return 0;
   
}

Comments

#include <stdio.h>

int main()
{
    int a[100];
    int i,j,n;
    printf("Enter the number elements\r\n");
    scanf("%d", &n);

    printf("Enter the ARRAY elements\r\n");   
    for(i = 0; i < n; i++)
    {
        scanf("%d", &a[i]);
    }
    
    int big = a[0],second_big = a[0];
    
    for (i = 1; i < n; i++)
    {
        if (big < a[i])
        {
            big = a[i];
        }
        if (second_big < a[i] && (a[i] < big))
        {
           second_big= a[i];
        }
    }
    
    printf("The  big number in array is %d\n",big);
    
    printf("The  second big number in array is %d\n",second_big);
}

Answer 2

#include <iostream>

using namespace std;

int main()
{
int a[5],max,median;
for(int i=0;i<5;i++)
cin>>a[i];
max=a[0];
median=a[0];
for(int i=0;i<5;i++)
{if(a[i]>max)
max=a[i];
}
for(int i=0;i<5;i++)
{if(a[i]>median && a[i]<max)
median=a[i];
}
cout<<max<<endl<<median;

    return 0;
}

مع تحيات طلاب انظمة الحاسوب...العراق بغداد معهد ادارة

Answer 3

#include <stdio.h>

int main()
{
    int a[100];
    int i,j,n;
    printf("Enter the number elements\r\n");
    scanf("%d", &n);

    printf("Enter the ARRAY elements\r\n");   
    for(i = 0; i < n; i++)
    {
        scanf("%d", &a[i]);
    }
    
    int big = a[0],second_big = a[0];
    
    for (i = 1; i < n; i++)
    {
        if (big < a[i])
        {
            big = a[i];
        }
        if (second_big < a[i] && (a[i] < big))
        {
           second_big= a[i];
        }
    }
    
    printf("The  big number in array is %d\n",big);
    
    printf("The  second big number in array is %d\n",second_big);
}

Answer 4

#include<stdio.h>
void main(int argc,char *argv[])
{
int a,b,c;
if(argc==4)
{
a=atoi(argv[1]);
b=atoi(argv[2]);
c=atoi(argv[3]);
printf("Entered values for A, B and C %d\t%d\t%d\n",a,b,c);
if((a>b) && (a>c))
{
printf("A is largest value \n");
}
else if(b>c)
{
printf("B is largest value \n");
}
else
{
printf("C is largest value \n");
}
}
else{
printf("enter three argument");
}
}

Answer 5

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

int main()
{
    int     num;            //number of elements
    int     *arr;           //array of elements
    int     first_big;      //biggest element
    int     second_big;     //2nd biggest element
    int     i_second = 0;   //initialization of the second elemnt
    int     i;
    
    
    printf("enter how many elements in the array: ");
    scanf( "%d", &num);
    printf( "you enter %d\n", num);
    
    if( num <= 1)
    {
        printf( "Bad value %d ; number of elements should be at least 2 \n", num );
        return 0;
    }
    
    if( (arr = (int *)malloc( num *sizeof ( int ))) == NULL)
    {
        printf( "allocation failed for %d elements\n", num );
        return (0);
    }
    
    for ( i = 0; i < num; i ++)
    {
        printf( "element %d : " , i+1);
        scanf( "%d", &arr[i]);   
        if( !i )
        {
            //initialization of biggest element
            first_big = arr[i];
        }
        else if ( arr[i] == first_big )
        {
            //nothing to do
            continue;
        }
        else if( arr[i] > first_big )
        {
            //we switch
            if( i_second)
            {
                second_big = first_big;
            }
            //we save the new biggest one
            first_big = arr[i];
        }
        else if( !i_second )
        {
            //initialization of 2nd biggest element
            second_big = arr[i];
            i_second = 1;
        }
        else if( arr[i] > second_big )
        {
            //value of 2nd biggest element
            second_big = arr[i];
        }
        
    }
    //list of elements
    printf( "***your data**** \n");
    for ( i = 0; i < num; i ++)
    {
        printf( "element %d  %d\n", i+1, arr[i]);
    }
    //and the result
    if( first_big && !i_second )
    {
        printf( "all the values entered are the same %d\n", first_big );
    }
    else
    {
        printf( "the biggest is : %d\n", first_big );
        printf( "the second biggest is : %d\n", second_big );
    }
    
    return 1;

}