Rezumat problemă

Numere32

#4964

Considerăm un număr natural X , cu cel puțin două cifre, toate diferite de 0 și un șir de N numere naturale, primul număr din șir fiind considerat pe poziția 1, al doilea pe poziția 2, al treilea pe poziția 3 ș.a.m.d.

Cerințe:

1. Determinați cel mai mare număr care se poate forma utilizând cifra unităților și cifra zecilor lui X.
2. Determinați poziția primei apariții a lui X în șirul celor N numere.
3. Determinați penultima și ultima poziție pe care apare X în șirul celor N numere.
4. Determinați numărul obținut prin inversarea ordinii de apariție a cifrelor impare din numărul X, fără a modifica pozițiile cifrelor pare. De exemplu, dacă X = 154372, se va obține numărul 734512.

OJI 2026, clasa a 5-a

Fișiere Candale Silviu (silviu) Roxana Timplaru concurs

Clasa 9 Algoritmi elementari Cifrele unui număr

Rezolvă

Detalii

Problema	Numere32	Operații I/O	numere.in/numere.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64335732	Utilizator	Manolache Smaranda Sofia (ManolacheSmarandaSofia)
Fișier	numere32.cpp	Dimensiune	1.29 KB
Data încărcării	30 Aprilie 2026, 11:05	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

numere32.cpp:1:2: error: invalid preprocessing directive #insert; did you mean #assert?
    1 | #insert<fstream>
      |  ^~~~~~
      |  assert
numere32.cpp:3:1: error: ‘ifstream’ does not name a type
    3 | ifstream cin("numere.in");
      | ^~~~~~~~
numere32.cpp:4:1: error: ‘ofstream’ does not name a type
    4 | ofstream cout("numere.out");
      | ^~~~~~~~
numere32.cpp: In function ‘int main()’:
numere32.cpp:8:5: error: ‘cin’ was not declared in this scope
    8 |     cin>>c>>x;
      |     ^~~
numere32.cpp:1:1: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
  +++ |+#include <iostream>
    1 | #insert<fstream>
numere32.cpp:9:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
    9 |     if(c==1);
      |     ^~
numere32.cpp:10:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   10 |     {
      |     ^
numere32.cpp:12:29: error: ‘cout’ was not declared in this scope
   12 |         if(x%100>x%10*10+a) cout<<x%100;
      |                             ^~~~
numere32.cpp:12:29: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:13:14: error: ‘cout’ was not declared in this scope
   13 |         else cout<<x%10*10+a;
      |              ^~~~
numere32.cpp:13:14: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:22:22: error: ‘cout’ was not declared in this scope
   22 |             if(a==x){cout<<p;return 0;}
      |                      ^~~~
numere32.cpp:22:22: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:24:9: error: ‘cout’ was not declared in this scope
   24 |         cout<<0;
      |         ^~~~
numere32.cpp:24:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:41:9: error: ‘cout’ was not declared in this scope
   41 |         cout<<pr<<' '<<ul;
      |         ^~~~
numere32.cpp:41:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:43:13: error: ‘cout’ was not declared in this scope
   43 |             cout<<"0 "<<ul;
      |             ^~~~
numere32.cpp:43:13: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:44:14: error: ‘cout’ was not declared in this scope
   44 |         else cout<<"0 0";
      |              ^~~~
numere32.cpp:44:14: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
numere32.cpp:47:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
   47 |     if(c==4);
      |     ^~
numere32.cpp:48:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   48 |     {
      |     ^
numere32.cpp:61:21: error: ‘swap’ was not declared in this scope
   61 |                     swap(v[i],v[j]);
      |                     ^~~~
numere32.cpp:64:17: error: ‘cout’ was not declared in this scope
   64 |                 cout<<v[i];
      |                 ^~~~
numere32.cpp:64:17: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?

Cum funcționează evaluarea?