Tasks: Data types, variables and constants

122 thoughts on “Tasks: Data types, variables and constants”

1. And this is the first task:
   #include
   #include

   using namespace std;
   int main()
   {
   setlocale(LC_ALL, “Russian”);
   int a, b, c, sum;
   int k, l, j;
   cout <> k >> a;
   cout <> l >> b;
   cout <> j >> c;

   sum =k* a + l * b + j * c;
   cout << "Сумма : " << sum << endl;

   system("pause");
   return 0;

   }

   Reply

2. Write an algorithm to algorithm rules:

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3. Second, even so it is best))

   [code]#include

   using namespace std;
   void main()
   {
   int od ;
   cout <> from;
   two of int + 3 =;
   int = three + two of;

   cout << "pervoe= : ";
   cout << from << "\n";
   cout << "vtoroe= : ";
   cout << dva << "\n";
   cout << "tretie= : ";
   cout << tri << "\n";
   system ("pause") ;
   }[/code]

   Reply

   1. #include

      using namespace std;
      void main()
      {
      int od ;
      cout <> from;
      two of int + 3 =;
      int = three + two of;

      cout << "pervoe= : ";
      cout << from << "\n";
      cout << "vtoroe= : ";
      cout << dva << "\n";
      cout << "tretie= : ";
      cout << tri << "\n";
      system ("pause") ;
      }

      Reply

4. so did not go?(1 a task)

   #include

   int main()
   {
   int shokolad=4;
   int kofe=3;
   int moloko = 5;

   float cenaShokolad=10.4;
   float cenaKofe=6.3;
   float cenaMoloko=3.7;
   float summ=(shokolad * cenaShokolad)+(kofe * cenaKofe)+(Moloko * cenaMoloko);
   printf(“Obshay summa pokupki sostavlyet% .2f $ n”,summ);
   return(0);
   }

   Reply

   1. It almost does not differ from that, which leads the author … but to use printf() to output the result instead of outputting a stream cout.

      But! printf() – is a C style, rather than C ++, and C ++ code it better, no reasonable need for it, do not use, and in use the output stream cout.

      Reply

   2. Chtoby tak ne pisat’ ispolzui
      setlocale(LC_ALL, “rus”);

      Reply

      1. It is not that simple – sometimes it works, sometimes not (depending on the type of operating system, Localization of the system and others.). Questions localization quite confused, and in order, to clarify them, very soon it will be posted here on the site 3 small articles on localization and input-output lines of the Russian-speaking.

         A first approximation, You can write well:
         setlocale( LC_ALL, “Russian” );
         Because your "rus", will work, for example, в Windows, but will fail on Linux. A site on the C ++ at all, instead of using C ++ in Windows.

   3. Personally, I would write like this:

      #include

      using namespace std;

      int main()
      {
      int shokolad=4;
      int kofe=3;
      int moloko = 5;

      float cenaShokolad=10.4;
      float cenaKofe=6.3;
      float cenaMoloko=3.7;
      float summ = (shokolad * cenaShokolad)+(kofe * cenaKofe)+(Moloko * cenaMoloko);
      cout << "Obshay summa pokupki sostavlyet – " << summ << endl;

      return(0);
      }

      Reply

5. Is vtoroya job so not easy?

   #include “stdafx.h”
   #include

   using namespace std;

   int main()
   {
   setlocale(LC_ALL, “rus”);

   int a,b,c;
   a = 2;
   b = a + 3;
   c = a + b;
   cout << "c= " << c << endl;

   return 0;
   }

   Reply

   1. The simpler?
      You could write down, that “easier” (and it is right and will work):
      
int a, b, c;
b = ( a = 2 ) + 3;
cout << "c = " << ( c = a + b ) << endl;

      “easier” – it does not mean better!

      Reply

6. #include
   using namespace std;

   int main () {
   setlocale (0, “”);
   int head, delusion, Log;

   cout <> cap;

   int amount = cap * 3;
   cout << "Всего потребуется предметов " << amount << endl;
   return 0;
   }

   Reply

   1. Another implementation of the third objective.. after imaging the first embodiment proved erroneously

      #include
      using namespace std;

      int main () {
      setlocale (0, “”);
      int head, delusion, Log;

      cout <> cap;

      int amount = cap * 3;
      cout << "Всего потребуется предметов " << amount << endl;
      return 0;
      }

      Reply

7. And this is how you can solve the first problem?

   #include
   using namespace std;

   int main() {
   const float chp = 55.0;
   const float cp = 125.5;
   const float mp = 29.99;

   int ch, c, m;
   cin>>ch;
   cin>>c;
   cin>>m;
   float sum = ch*chp + c*cp + m*mp;
   cout<<"chocolate price = "<<chp*ch<<endl;
   cout<<"coffee price = "<<cp*c<<endl;
   cout<<"milk price = "<<mp*m<<endl;
   cout<<"sum = "<<sum<<endl;
   return 0;
   }

   Reply

8. most likely with English everything is shit, I'm too lazy to set the locale
   how do you like the code?)

   #include “stdafx.h”
   #include

   using namespace std;
   int main()
   {
   int a, b, c;
   float j, k, l;
   cout <> a;
   cout <> b;
   cout <> c;
   cout <> j;
   cout <> k;
   cout <> l;
   float sum = a * j + b * k + c * l;
   cout << "amount of your purchase = " << sum << endl;
   system("pause");
   return 0;

   }

   Reply