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Interquartile_range.c
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Interquartile_range.c
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//Problem statement :- Calculate Interquartile range from given number series
#include<stdio.h>
#include<stdlib.h>
int comp(const void* start , const void* last)
{
return (*(int*)start - *(int*)last);
}
int main()
{
int n;
printf("Enter the size\n");
scanf("%d",&n);
int arr[n];
printf("Enter the array element\n");
for(int i=0;i<n;i++)
{
scanf("%d",&arr[i]);
}
qsort(arr,n,sizeof(int),comp); // Here we sort our array
int start = 0 , last = n-1; // we assign 0 and n-1 as the index value for start and last index
int Quartile1 , Quartile2 , Quartile3;
int mid = (last - start)/2; // Here we calculate median of our series
printf("Median of series as Quartile2 %d : \n", arr[mid]);
Quartile1 =arr[(mid-0)/2]; //Here we calculate first half Quartile
printf("The Median of first half as Quartile1 %d: \n",Quartile1);
Quartile3 = arr[mid+1+(last-mid)/2]; //Here we calculate second half Quartile
printf("The Median of Second half as Quartile3 %d:\n ",Quartile3);
printf("The IQR value is %d\n",Quartile3 - Quartile1);
}
// Case 1: INPUt :- 1 3 5 2 4 6
// OUTPUT:- Median of series as Quartile2 : 3
// The Median of first half as Quartile1 : 2
// The Median of second half as Quartile2 : 5
// The IQR value is : 3