~/algor $ cat masalalar/for-yigindi-va-ortacha
For-25
Yig'indi va o'rtacha
Muallif:
Iqbolshoh Ilhomjonov
Oson
1000 ms
64 MB
29%
Natural son $n$ hamda $n$ ta butun son $a_{1}, a_{2}, \dots, a_{n}$ berilgan. Ularning yig'indisi $S$ va o'rta arifmetigi $M$ ni hisoblang:
$$S = a_{1} + a_{2} + \dots + a_{n}, \qquad M = \frac{S}{n}$$
Kiruvchi ma'lumotlar
Birinchi qatorda $n$. Ikkinchi qatorda bo'sh joy bilan ajratilgan $n$ ta butun son.
Chiquvchi ma'lumotlar
Birinchi qatorda butun son $S$. Ikkinchi qatorda $M$ — nuqtadan keyin aynan 2 ta raqam bilan (masalan, 5.00).
Izoh
$1 \le n \le 1000$
$-10^{6} \le a_{i} \le 10^{6}$
Misollar
Kirish #1
3 4 5 6
Chiqish #1
15 5.00
Kirish #2
4 1 -2 7 9
Chiqish #2
15 3.75