programovanie a matematika

Sekcia: Programovanie 23.01 | 09:23
Avatar Stanislav Hoferek Greenie 18.04  Používateľ

Ahojte. Toto nie je problém, skôr otázka. Učím sa trochu PHP, databázy a všetko možné, nech trochu zmúdriem. A dostal som nápad na relatívne jednoduchú úlohu. Ako a v čom by ste to vyriešili? Podotýkam, nie je to žiadny chyták, je to len čisto počítanie.

  • Lenka Lenivá, Peter Priemerný a Rita Rýchla píšu texty.
  • Lenka napíše 1 stranu za hodinu, Peter 2 a Rita 3
  • Koľko textu napíšu všetci traja za týždeň, ak pracujú 8 hodín denne a majú chrípku, kvôli ktorej pracujú len na polovičný výkon?
    • RE: programovanie a matematika 23.01 | 10:51
      Avatar okl   Návštevník

      dufam ze si robis srandu.

    • RE: programovanie a matematika 23.01 | 11:14
      Avatar xxxx   Návštevník

      ak chces zacat s programovanim, pozri si nieco o algoritmoch a ich prevode do nejakeho programovacieho jazyka (na zaciatok)...

      • RE: programovanie a matematika 23.01 | 14:23
        Avatar Stanislav Hoferek Greenie 18.04  Používateľ

        študujem, okrem iného cykly v PHP. tu ma len čisto zaujíma, kto by to ako riešil. Samozrejme minimalistické riešenia sú veľmi fajn a po pravde mi napríklad nenapadli tak jednoduché riešenia, aké sú spomínané v tomto vlákne.

        • RE: programovanie a matematika 23.01 | 17:27
          Avatar debian+_debian+   Návštevník
          • RE: programovanie a matematika 23.01 | 17:29
            Avatar debian+_debian+   Návštevník

            uvezok_denne = pocet hodin denne

    • RE: programovanie a matematika 23.01 | 11:41
      Avatar Livan Manjaro s XFCE  Používateľ

      Vyriešil by som to na kalkulačke, stačí zápisom vzorca do príkazového riadka webového prehliadača.(1+2+3)*8*7/2 za predpokladu že rátame 7 dní v týždni (168 je výsledok) a nie iba 5 pracovných. Na toto určite netreba nič programovať. Programuje sa v prípade, že sa výpočet potrebuje opakovať pri iných vstupných parametroch.

      • RE: programovanie a matematika 23.01 | 11:48
        Avatar bedňa LegacyIce-antiX  Administrátor

        Alebo do terminálu echo "(1+2+3)*8*7/2" | bc

        Táto správa neobsahuje vírus, pretože nepoužívam MS Windows. http://kernelultras.org
        • RE: programovanie a matematika 23.01 | 12:07
          Avatar Livan Manjaro s XFCE  Používateľ

          To je zbytočne o 12 znakov viacej (echo "" | bc).

          • RE: programovanie a matematika 23.01 | 12:41
            Avatar bedňa LegacyIce-antiX  Administrátor

            Ale funguje aj cez ssh :)

            Táto správa neobsahuje vírus, pretože nepoužívam MS Windows. http://kernelultras.org
        • RE: programovanie a matematika 23.01 | 13:51
          Avatar debian+_debian+   Návštevník

          Ak mas BASH, tak o 2 znaky menej:

          echo $(((1+2+3)*8*7/2))
        • RE: programovanie a matematika 25.01 | 11:22
          Avatar LUcoRP Debian, *Ubuntu, Android  Administrátor

          Dokaze toto BASH?

          (((16 == [16])+("\t\r\n 16 \t\r\n" == 16 )+(typeof NaN == 'number')+(9999999999999999 == 10000000000000000)+(0 == '0')+("2" - "1"))*(true+true+true+true+true+true+true+(null == undefined))*(true+true+true+true+true+true+(' \t\r\n ' == 0)))/(('' == 0)+("2" - "1"))

          Alebo toto?

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    • RE: programovanie a matematika 23.01 | 13:51
      Avatar debian+_debian+   Návštevník

      gnumberic, PHP alebo bc

    • RE: programovanie a matematika 26.01 | 08:54
      Avatar ra100   Návštevník
      $LenkaL = 1;
      $PeterP = 2;
      $RitaR  = 3;
      
      $PocetStran = $LenkaL + $PeterP + $RitaR;
      $PocetStran = $PocetStran / 2; // polovicny vykon
      $PocetStran = $PocetStran * 8; // pocet stran za 8 hodin
      $PocetStran = $PocetStran * 7; // pocet stran za tyzden