Rezumat problemă

Zona4

#1749

Considerăm o matrice pătratică cu N linii și N coloane. În această matrice sunt definite 4 zone:

• zona 1, formată din elementele situate strict deasupra diagonalei principale și strict deasupra diagonalei secundare;
• zona 2, formată din elementele situate strict deasupra diagonalei principale și strict sub diagonala secundară;
• zona 3, formată din elementele situate strict sub diagonala principală și strict sub diagonala secundară;
• zona 4, formată din elementele situate strict sub diagonala principală și strict deasupra diagonalei secundare;

Se dă o matrice pătratică și un număr natural Z, reprezentând o zonă din matrice. Să se determine suma elementelor din zona Z.

Consola Candale Silviu (silviu) ușoară

Clasa 9 Tablouri bidimensionale (matrice) Parcurgerea matricelor pătratice

Rezolvă

Detalii

Problema	Zona4	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64191806	Utilizator	Ungureanu Albert (albert1231232234)
Fișier	zona4.cpp	Dimensiune	564 B
Data încărcării	22 Aprilie 2026, 11:28	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

zona4.cpp:5:1: error: expected initializer before ‘int’
    5 | int s1()
      | ^~~
zona4.cpp: In function ‘int s2()’:
zona4.cpp:17:9: error: expected ‘(’ before ‘*’ token
   17 |     for *(int i=j+1;j<=n;j++)
      |         ^
      |         (
zona4.cpp:17:11: error: expected primary-expression before ‘int’
   17 |     for *(int i=j+1;j<=n;j++)
      |           ^~~
zona4.cpp:17:11: error: expected ‘)’ before ‘int’
   17 |     for *(int i=j+1;j<=n;j++)
      |          ~^~~
      |           )
zona4.cpp:17:21: error: ‘j’ was not declared in this scope
   17 |     for *(int i=j+1;j<=n;j++)
      |                     ^
zona4.cpp:18:5: error: ‘s’ was not declared in this scope
   18 |     s+=a[i][j];
      |     ^
zona4.cpp:16:1: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   16 | for (int i=1;i<=(n-1)/2+2;i--)
      | ^~~
zona4.cpp:20:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   20 |     return s;
      |     ^~~~~~
zona4.cpp:20:12: error: ‘s’ was not declared in this scope; did you mean ‘s1’?
   20 |     return s;
      |            ^
      |            s1
zona4.cpp:15:6: warning: unused variable ‘s1’ [-Wunused-variable]
   15 | {int s1=0;
      |      ^~
zona4.cpp: In function ‘int s3()’:
zona4.cpp:26:9: error: expected ‘(’ before ‘*’ token
   26 |     for *(int i=j+1;j<=n;j++)
      |         ^
      |         (
zona4.cpp:26:11: error: expected primary-expression before ‘int’
   26 |     for *(int i=j+1;j<=n;j++)
      |           ^~~
zona4.cpp:26:11: error: expected ‘)’ before ‘int’
   26 |     for *(int i=j+1;j<=n;j++)
      |          ~^~~
      |           )
zona4.cpp:26:21: error: ‘j’ was not declared in this scope
   26 |     for *(int i=j+1;j<=n;j++)
      |                     ^
zona4.cpp:27:5: error: ‘s’ was not declared in this scope
   27 |     s+=a[i][j];
      |     ^
zona4.cpp:25:1: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   25 | for (int i=1;i<=(n-1)/2;i++)
      | ^~~
zona4.cpp:29:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   29 |     return s;
      |     ^~~~~~
zona4.cpp:29:12: error: ‘s’ was not declared in this scope; did you mean ‘s1’?
   29 |     return s;
      |            ^
      |            s1
zona4.cpp:24:6: warning: unused variable ‘s1’ [-Wunused-variable]
   24 | {int s1=0;
      |      ^~
zona4.cpp: In function ‘int s4()’:
zona4.cpp:35:9: error: expected ‘(’ before ‘*’ token
   35 |     for *(int i=j+1;j<=n;j++)
      |         ^
      |         (
zona4.cpp:35:11: error: expected primary-expression before ‘int’
   35 |     for *(int i=j+1;j<=n;j++)
      |           ^~~
zona4.cpp:35:11: error: expected ‘)’ before ‘int’
   35 |     for *(int i=j+1;j<=n;j++)
      |          ~^~~
      |           )
zona4.cpp:35:21: error: ‘j’ was not declared in this scope
   35 |     for *(int i=j+1;j<=n;j++)
      |                     ^
zona4.cpp:36:5: error: ‘s’ was not declared in this scope
   36 |     s+=a[i][j];
      |     ^
zona4.cpp:34:1: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   34 | for (int i=1;i<=(n-1)/2;i++)
      | ^~~
zona4.cpp:38:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   38 |     return s;
      |     ^~~~~~
zona4.cpp:38:12: error: ‘s’ was not declared in this scope; did you mean ‘s1’?
   38 |     return s;
      |            ^
      |            s1
zona4.cpp:33:6: warning: unused variable ‘s1’ [-Wunused-variable]
   33 | {int s1=0;
      |      ^~

Cum funcționează evaluarea?