c - 变量值不存储

Question

我需要为我的 C 编程类(class)创建一个程序，允许用户输入未知数量的数字。然后它将获取这些值并找到最小值、最大值和平均值。

下面是我迄今为止编写的源代码:

#include <stdio.h>
#include <stdlib.h>
//Post-Lab #4
int main()
{
    int sums = 0;
    int n = 0;
    int number;
    int min = number; //Lines 6 to 12 define the variables being used in this program.
    int max = number;
    int avg;
    char confirm = 'Y'; //Using this to end the while loop under user influence.

printf("NOTE: Program will continue to receive inputs until user states 'N'. \n");//a negative value ends the while loop.
printf("Please enter a value: ");
scanf(" %d", &number);
printf(" %d, %d, %d, %d, %d", number, min, max, n, sums);//Im using these print command to troubleshoot what the values look like after a step.

while (number >= 0) //Utilizing while loop to allow user multiple, in this case, numerical inputs.
    {
    printf("Would you like to enter another value (Y/N): ");
    scanf(" %c", &confirm);

    if(confirm == 'Y') //Had to nest another if statement. Program was including negative value.
       {
        printf("Please enter a value: "); //Prints guide for user.
        scanf(" %d", &number); //Used to read user inputs

        n = n + 1; //Counter to use for finding the average later in the program.
        sums = sums + number; //Since this program cannot use arrays, these values will not be stored, but simply added.

        if (number > max) //If statement used to determine the maximum   value as the user enters them.
            {
            max = number;
            }
        if (number < min)
            {
            min = number;
            }
        printf(" %d, %d, %d, %d, %d", number, min, max, n, sums);
       }
       else
        break;
    }

avg = sums / n; //Calculates the average.

printf("Your results are: \n");
printf("The maximum value is: %d \n", max); //Lines 41 to 44 simply print        the results of the calculation.
printf("The minimum value is: %d \n", min);
printf("The average is: %d \n", avg);

return 0;
}

我的问题发生在第 8 行到第 17 行。
当我在第 16 行 scanf 查找用户输入时，它会将 number 变量设置为该值，但不会设置变量 max 和 >min 到该输入。
它仅等于2686868。我该如何解决这个问题？

Answer 1

下面的代码行是错误的。

int min = number; //Lines 6 to 12 define the variables being used in this program.
int max = number;

由于number尚未初始化，请在输入号码后加上此内容。

 printf("Please enter a value: ");
 scanf(" %d", &number);
 int min = number;        //Have These Lines Here
 int max = number;

就像其中一条评论告诉您更改不会传播一样，变量会保留它们设置的值，直到稍后更改为止，更改number不会更改min并且自动最大。