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C 程序:查找两个数字的平均值

原文: https://beginnersbook.com/2017/09/c-program-to-find-the-average-of-two-numbers/

在这里,我们将编写两个 C 程序来查找两个数字的平均值(由用户输入)。

示例 1:编程以查找两个数字的平均值

#include <stdio.h>
int main()
{
    int num1, num2;
    float avg;

    printf("Enter first number: ");
    scanf("%d",&num1);
    printf("Enter second number: ");
    scanf("%d",&num2);

    avg= (float)(num1+num2)/2;

    //%.2f is used for displaying output upto two decimal places
    printf("Average of %d and %d is: %.2f",num1,num2,avg);

    return 0;
}

输出:

Enter first number: 12
Enter second number: 13
Average of 12 and 13 is: 12.50

示例 2:使用函数用于查找均值的程序

在这个程序中,我们创建了一个用户定义函数average()来计算平均值。用户输入的数字在函数调用期间传递给该函数。

#include <stdio.h>
float average(int a, int b){
    return (float)(a+b)/2;
}
int main()
{
    int num1, num2;
    float avg;

    printf("Enter first number: ");
    scanf("%d",&num1);
    printf("Enter second number: ");
    scanf("%d",&num2);

    avg = average(num1, num2);

    //%.2f is used for displaying output upto two decimal places
    printf("Average of %d and %d is: %.2f",num1,num2,avg);

    return 0;
}

输出:

Enter first number: 20
Enter second number: 13
Average of 20 and 13 is: 16.50

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