Rezumat problemă

maru

#2943

Se dă o matrice pătratică de n x n numere naturale și o valoare naturală T. Suma unei submatrice este suma elementelor submatricei. Să se determine numărul submatricelor care au suma mai mică sau egală cu T.

Consola Pracsiu Dan (dnprx) Dan Pracsiu dificilă

Clasa 9 Tablouri bidimensionale (matrice) Probleme diverse Sume parțiale Two Pointers

Rezolvă

Detalii

Problema	maru	Operații I/O	tastatură/ecran
Limita timp	0.5 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64213331	Utilizator	Constantinescu Ada (Ada_19)
Fișier	maru.cpp	Dimensiune	425 B
Data încărcării	23 Aprilie 2026, 10:41	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

maru.cpp: In function ‘int main()’:
maru.cpp:9:1: error: ‘s’ was not declared in this scope
    9 | s[i][j]=s[i-1][j]+s[i][j-1]-s[i-1][j-1]+A[i][j];}
      | ^
maru.cpp:12:11: warning: right operand of comma operator has no effect [-Wunused-value]
   12 | for(i=k1,i<=n;i++)
      |          ~^~~
maru.cpp:12:18: error: expected ‘;’ before ‘)’ token
   12 | for(i=k1,i<=n;i++)
      |                  ^
      |                  ;
maru.cpp:14:4: warning: init-statement in selection statements only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   14 | if(s[i][j]-s[i-k1][j]-s[i][j-k2]+s[i-k1][j-k2]<t;
      |    ^
maru.cpp:14:4: error: ‘s’ was not declared in this scope
maru.cpp:15:1: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
   15 | nr++;
      | ^~
      | n
maru.cpp:15:5: error: expected ‘)’ before ‘;’ token
   15 | nr++;
      |     ^
      |     )
maru.cpp:14:3: note: to match this ‘(’
   14 | if(s[i][j]-s[i-k1][j]-s[i][j-k2]+s[i-k1][j-k2]<t;
      |   ^
maru.cpp:16:7: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
   16 | cout<<nr;
      |       ^~
      |       n

Cum funcționează evaluarea?