Rezumat problemă

MatrixLH

#4679

PbInfo vă pune la dispoziție câteva lucruri grozave: o matrice de n x n numere naturale, un număr natural k, precum și alte două numere naturale L și H, unde L ≤ H. Trebuie să determinați câte submatrice k x k au suma elementelor cuprinsă între L și H.

Folclorul informatic

Consola Pracsiu Dan (dnprx) Dan Pracsiu medie

Clasa 9 Tablouri bidimensionale (matrice) Parcurgerea matricelor pătratice Sume parțiale

Rezolvă

Detalii

Problema	MatrixLH	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64195366	Utilizator	Constantinescu Ada (Ada_19)
Fișier	matrixlh.cpp	Dimensiune	365 B
Data încărcării	22 Aprilie 2026, 12:51	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

matrixlh.cpp:3:25: error: expected initializer before numeric constant
    3 | int a[501][501],n,s[501]501],i,k,j,l,h,nr;
      |                         ^~~
matrixlh.cpp: In function ‘int main()’:
matrixlh.cpp:5:10: error: ‘k’ was not declared in this scope
    5 | {cin>>n>>k>>l>>h;
      |          ^
matrixlh.cpp:5:13: error: ‘l’ was not declared in this scope
    5 | {cin>>n>>k>>l>>h;
      |             ^
matrixlh.cpp:5:16: error: ‘h’ was not declared in this scope
    5 | {cin>>n>>k>>l>>h;
      |                ^
matrixlh.cpp:6:6: error: ‘i’ was not declared in this scope
    6 |  for(i=1;i<=n;i++)
      |      ^
matrixlh.cpp:7:5: error: ‘j’ was not declared in this scope
    7 | for(j=1;j<=n;j++)
      |     ^
matrixlh.cpp:9:3: error: ‘s’ was not declared in this scope
    9 |   s[i][j]=s[i-1][j]+s[i][j-1]+a[i][j];}
      |   ^
matrixlh.cpp:10:6: error: ‘i’ was not declared in this scope
   10 |  for(i=k;i<=n-k;i++)
      |      ^
matrixlh.cpp:11:10: error: ‘j’ was not declared in this scope
   11 |      for(j=k;j<=n-k;j++)
      |          ^
matrixlh.cpp:12:9: error: ‘s’ was not declared in this scope
   12 |      if(s[i][j]-s[i][j-k]>=l&&s[i][j]-s[i][j-k]<=h)
      |         ^
matrixlh.cpp:13:6: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
   13 |      nr++;
      |      ^~
      |      n
matrixlh.cpp:10:2: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   10 |  for(i=k;i<=n-k;i++)
      |  ^~~
matrixlh.cpp:14:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   14 |      cout<<nr;
      |      ^~~~
matrixlh.cpp:14:12: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
   14 |      cout<<nr;
      |            ^~
      |            n

Cum funcționează evaluarea?