#include <stdio.h>
int main() {
int x, y, z;
int max, min, sum;
double average, variance;
scanf("%d %d %d", &x
, &y
, &z
);
max = x;
if (y > max) max = y;
if (z > max) max = z;
min = x;
if (y < min) min = y;
if (z < min) min = z;
sum = x + y + z;
average = sum / 3.0;
variance = ((x - average) * (x - average) +
(y - average) * (y - average) +
(z - average) * (z - average)) / 3.0;
printf("平均値: %.2f\n", average
); printf("分散値: %.2f\n", variance
);
return 0;
}
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