Thread: Program that prints closest number to average value

Write a program code which is enters 10 integers .
It prints the average value of all the numbers entered and prints nearest loaded number to the average .
Example:
input : 1 2 3 4 5 0 0 0 0 1
Output: 1.6 2

Code:

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


int main(void) {
    


    int Num[10+1], i, closestNum = 0;
    float middle_Value = 0 , check[10+1];


    printf("Enter 10 integer values:\n");
    
    for( i = 0; i < 10; i++){
        
        scanf("%d", &Num[i]);
        middle_Value += Num[i];
    }
    
    middle_Value = middle_Value / (i + 1.0);
    
    for ( i = 0; i < 10; i++){
        
        check[i] = fabs(middle_Value - Num[i]);
        
        if( i < 1){
            
            closestNum = Num[i];
            
        }else{
    
            if( check[i] < check[i-1] ){
            
                closestNum = Num[i];
        
            }
        }
        
    }
    
    printf(" %f  %d", middle_Value, closestNum );
    
    return 0;
}

It prints 1 for the closest number.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define SIZE 10 
 
int main(void) {
     
 
 
    int num[10+1], i, closestNum;
    float avg = 0, diff , lastDiff;
    
 
 
    printf("Enter 10 integer values:\n");
     
    for( i = 0; i < 10; i++){
         
        scanf("%d", &num[i]);
        avg += num[i];
    }
     
    avg = avg / 10.0;
    closestNum = num[0];
    lastDiff = avg - num[0];
    
    for (i = 1; i < SIZE; i++) {
        diff = fabs(avg - num[i]);
        
        if (diff < lastDiff)
            closestNum = num[i];
        
        
        
        lastDiff = diff;
    }
     
    printf(" %f  %d", avg, closestNum );
     
    return 0;
}

I am still getting the same result , closest number: 1.

I guess I should've tested it. We don't want the lastDiff, but instead the smallestDiff !

Code:

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

#define SIZE 10 
  
int main(void) {
    int num[SIZE], i, closestNum;
    double avg = 0, diff, smallestDiff;
  
    printf("Enter %d integer values:\n", SIZE);
    for (i = 0; i < SIZE; i++){
        scanf("%d", &num[i]);
        avg += num[i];
    }
      
    avg /= (double)SIZE;
    closestNum = num[0];
    smallestDiff = avg - num[0];

    for (i = 1; i < SIZE; i++) {
        diff = fabs(avg - num[i]);
        if (diff < smallestDiff) {
            closestNum = num[i];
            smallestDiff = diff;
        }
    }
      
    printf(" %f  %d\n", avg, closestNum);
      
    return 0;
}