C/code/计算平均值.c

#include <stdio.h>

int main() {
	int x, y, z;
	scanf("%d %d %d", &x, &y, &z);
	
	int sum = x + y + z;
	float average = (float)sum / 3;
	
	printf("%d\n%.2f", sum, average);
	
	return 0;
}