#include <stdio.h>
int main() {
int a, b, c;
double average;
// 提示用户输入三个整数
scanf("%d %d %d", &a
, &b
, &c
);
// 计算平均数
average = (a + b + c) / 3.0;
// 输出平均数
printf("这三个整数的平均数是:%.2f\n", average
);
return 0;
}
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