2023-12-01 13:35:13 +01:00

20 lines
346 B
C

#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
int n, k;
scanf("%d %d", &n, &k);
int sum = 0;
for (int i = 0; i < k; ++i) {
int x;
scanf("%d", &x);
sum += x;
}
int min = sum - (n - k) * 3;
int max = sum + (n - k) * 3;
printf("%.6f %.6f\n", min / (double)n, max / (double)n);
return 0;
}