Write a programElementary20 XPExercise 3/15

Ski jumpers

Task

The program evaluates ski jumps. It reads the number of jumpers (1 to 20), generates their jumps as random decimal numbers from 75 to 100 metres rounded to one decimal place, makes a "presentation of the jumps" and finds the longest jump.

Split it into functions the tests call directly:

vygeneruj_skoky(pocet) returns a list of pocet random lengths from 75 to 100 rounded to 1 decimal place,
najdlhsi_skok(skoky) returns the position (from 1) of the jumper with the longest jump; if there are several, the first one,
prezentacia(skoky) prints a line like 1. skokan: 87.5 m for every jumper (the length always with one decimal place).

What the program should do

najdlhsi_skok([88.5, 97.0, 91.2]) returns 2.

Examples

Call

print(najdlhsi_skok([88.5, 97.0, 91.2]))

Expected output

Call

prezentacia([88.5, 97.0])

Expected output

1. skokan: 88.5 m
2. skokan: 97.0 m

Call

s = vygeneruj_skoky(20)
print(len(s) == 20, all(75 <= x <= 100 for x in s), all(round(x, 1) == x for x in s))
print(len(set(vygeneruj_skoky(20))) > 1)

Expected output

True True True
True

After you submit, 5 hidden tests will also check your solution: two equally long jumps, one jumper, the longest comes last, the number of jumps, a length given as a whole number.

Python starts the first time you run code.

import random
def vygeneruj_skoky(pocet):
    pass
def najdlhsi_skok(skoky):
    pass
def prezentacia(skoky):
    pass
if __name__ == "__main__":
    pocet = int(input("Počet skokanov (1-20): "))
    if 1 <= pocet <= 20:
        skoky = vygeneruj_skoky(pocet)
        prezentacia(skoky)
        n = najdlhsi_skok(skoky)
        print(f"Najdlhší skok: {n}. skokan")
    else:
        print("zly pocet")

Ctrl+Enter runs the program. Tab indents. Press Esc, then Tab, to leave the editor.

Input (stdin)

Each line = one call to input().

Output

Hints

Try it yourself first. Each hint reveals a little more - and lowers the reward a little.

Signed out, hints are free - but no XP is awarded either.

Solution

The solution unlocks after the last hint.