This is a C language array problem. Outputs the closest number to the number entered in the array

It takes an integer from the array and outputs the element and difference of the most approximate value.

The desired terminal output is as follows.

[ 10 20 30 40 50 60 70 80 90 ]

Enter an integer: 23

The second element, 20, is closest to 23. The difference is 21.

First of all, I coded it like this, but the value is printed out.

I'd really appreciate your help.

#include <stdio.h>
#include <math.h> 
#include <limits.h> 
#define SIZE 9

int main(void)
{
    int user, th, i;
    int diff = 0;
    int near = 0;
    int abs = 0;
    int min = INT_MAX;
    int list[SIZE] = {10, 20, 30, 40, 50, 60, 70, 80, 90};

    printf("[");
    for (i = 0 ; i < SIZE ; i++) {
        printf("%d ", list[i]);
    }
    printf("]\n");


    printf ("Enter an integer:");
    scanf("%d", &user);


    for (i = 0 ; i < SIZE ; i++) {
        diff = user - list[i];
        if (abs < min) {
            min = abs;
            near = list[i];

            printf("%dth element %d" is closest to %d. The difference is %d.\n", th, near, user, diff);
            break;
        }
    }

    return 0;
}

c array

2022-09-20 14:37

1 Answers

int abs(int num)

https://docs.microsoft.com/ko-kr/cpp/c-runtime-library/reference/abs-labs-llabs-abs64?view=msvc-170

#include <stdio.h>
#include <math.h>
#include <limits.h>
#include <stdlib.h>
#define SIZE 9

int main(void)
{
    int user, th, i;
    int diff = 0;
    int near = 0;
    int min = INT_MAX;
    int list[SIZE] = {10, 20, 30, 40, 50, 60, 70, 80, 90};

    printf("[");
    for (i = 0 ; i < SIZE ; i++) {
        printf("%d ", list[i]);
    }
    printf("]\n");


    printf ("Enter an integer:");
    scanf("%d", &user);


    for (i = 0 ; i < SIZE ; i++) {
        diff = user - list[i];
        if (abs(diff) < min) {
            min = abs(diff);
            near = list[i];
            th = i;
        }
    }
    printf("%dth element %d" is closest to %d. The difference is %d.\n", th, near, user, min);
    return 0;
}

[10 20 30 40 50 60 70 80 90 ]
Enter an integer: 24
The first element, 20, is closest to 24. The difference is four.
[10 20 30 40 50 60 70 80 90 ]
Enter an integer: 26
The second element, 30, is closest to 26. The difference is four.

2022-09-20 14:37

If you have any answers or tips

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656