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IO-03. 求整数均值

本题要求编写程序,计算4个整数的和与平均值。题目保证输入与输出均在整型范围内。

输入格式:

输入在一行中给出4个整数,其间以空格分隔。

输出格式:

在一行中按照格式“Sum = 和; Average = 平均值”顺序输出和与平均值,其中平均值精确到小数点后1位。

输入样例:

1 2 3 4

输出样例:

Sum = 10; Average = 2.5

C语言代码实现:
 1 #include <stdio.h>
 2 
 3 int main()
 4 {
 5     int a1,a2,a3,a4,sum;
 6     scanf("%d %d %d %d", &a1, &a2, &a3, &a4);
 7     sum = a1 + a2 + a3 + a4;
 8     printf("Sum = %d;", sum);
 9     printf(" Average = %0.1f\n", sum/4.0);
10     return 0;
11 }

Java代码实现:

 1 import java.util.Scanner;
 2 
 3 public class Main {
 4     public static void main(String[] args) {
 5         int a, b, c, d, sum;
 6         Scanner s1 = new Scanner(System.in);
 7         a = s1.nextInt();
 8         b = s1.nextInt();
 9         c = s1.nextInt();
10         d = s1.nextInt();
11         sum = a + b + c + d;
12         System.out.println("Sum = " + sum + "; Average = " + sum / 4.0);
13     }
14 }