使用用户输入查找最大和最小数字 [英] Finding biggest and smallest numbers using user input

问题描述

在一组数字中找到最大和最小的数字是一个问题，但是我们不知道用户想要多少个数字-

Well it is a problem about finding the biggest and smallest number in a group of numbers, but we do not know how many numbers the user wants-

到目前为止，这是我所做的:

So far this is what i have done:

#include <stdio.h>
#include <conio.h>
int main()
{

int num;
int i;
int maxi=0;
int minim=0;
int cont = 0;

printf ("\nQuantity of numbers?: ");
scanf ("%d", &num);
while (num>0)
    {
    printf ("\nEnter number:");
    scanf ("%d", &i);
    if (num>i)
        minim=i++;

    else
        if (i>num)
            max=i++;
            cont++;
}

printf ("\nBiggest number is es: %d", maxi);
printf ("\nSmallest number is: %d", minim);
getch();
return 0;
}

我做了我的程序，询问用户要输入多少个数字，然后我使程序读取它们，但是当它读取最大或最小的数字时，有时会变为小而最大，而不会读取负数.

I did my program to ask how many numbers the user will want to put and i made the program to read them, BUT when it reads the biggest or/and smallest numbers it will sometimes changes biggest with small and it will not read negative numbers.

我如何做才能使我的程序更好?

How do i do to make my program better?

推荐答案

您应将 mini 初始化为可能的最大整数，即 INT_MAX 和 maxi 到最小的int，即 INT_MIN .这样，即使第一个数字为负，也将考虑使用 maxi ，如果第一个数字为正，则仍将考虑使用 mini .常量 INT_MAX 和 INT_MIN 包含在< climits> 或< limits.h> 中.

You should initialize mini to the largest possible int, i.e. INT_MAX and maxi to the smallest possible int, i.e., INT_MIN. This way, even if the first number is negative, it will be considered for maxi, and if the first number is positive it will still be considered for mini. The constants INT_MAX and INT_MIN are included in <climits> or <limits.h>.

此外，您正在将当前输入的数字与 num (这是用户输入的数字的计数器)进行比较，而不是他要比较的值之一.更好的修改代码是:

Also, you are comparing the current entered number with num, which is the counter of numbers entered by user, not one of the values he wants to compare. A better modified code would be :

#include<limits.h>
#include<stdio.h>
int main()
{

    int num;
    int maxi=INT_MIN;     //initialize max value
    int mini=INT_MAX;     //initialize min value
    int temp;
    scanf("%d", &num);    //take in number of numbers

    while(num--)          //loop "num" times, num decrements once each iteration of loop
    {

        scanf("%d", &temp);    //Take in new number
        if(temp>maxi)          //see if it is new maximum
            maxi=temp;     //set to new maximum
        if(temp<mini)          //see if new minimum
            mini=temp;     //set to new minimum
    }
    printf("\nMaxi is:\t%d\nMini is:\t%d\n", maxi, mini);   //print answer
    return 0;
}

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