Rezumat problemă

SubmatrixSumMax

#3410

Se dă o matrice de numere întregi cu n linii și n coloane. Să se determine suma maximă care se poate obține dintr-o submatrice.

Folclorul informatic

Consola Pracsiu Dan (dnprx) Dan Pracsiu dificilă

Clasa 9 Tablouri bidimensionale (matrice) Parcurgerea matricelor oarecare Sume parțiale Secventa de suma maxima

Rezolvă

Detalii

Problema	SubmatrixSumMax	Operații I/O	tastatură/ecran
Limita timp	0.3 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63398138	Utilizator	Istrate Alexandru (BAlex69)
Fișier	submatrixsummax.cpp	Dimensiune	659 B
Data încărcării	01 Martie 2026, 20:35	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

submatrixsummax.cpp: In function 'int main()':
submatrixsummax.cpp:12:24: error: 'm' was not declared in this scope
         for(int j=1;j<=m;j++){

                        ^
submatrixsummax.cpp:13:21: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
             cin>>a[i];

                     ^
In file included from /usr/include/c++/4.8/sstream:38:0,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from submatrixsummax.cpp:1:
/usr/include/c++/4.8/istream:872:5: error:   initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = int [301]]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
submatrixsummax.cpp:21:23: error: 'm' was not declared in this scope
                 v[i]+=m[bot][i];

                       ^
submatrixsummax.cpp:25:30: error: invalid conversion from 'int*' to 'int' [-fpermissive]
                 if(s<0) s=a[i];

                              ^
submatrixsummax.cpp:26:23: error: invalid use of non-lvalue array
                 else s+=a[i];

                       ^
submatrixsummax.cpp:26:23: error:   in evaluation of 'operator+=(int, int [301])'
submatrixsummax.cpp:24:35: warning: unused variable 'pp' [-Wunused-variable]
                 int s=0, smax=-1, pp=1, p=1, u=1;

                                   ^
submatrixsummax.cpp:24:41: warning: unused variable 'p' [-Wunused-variable]
                 int s=0, smax=-1, pp=1, p=1, u=1;

                                         ^
submatrixsummax.cpp:24:46: warning: unused variable 'u' [-Wunused-variable]
                 int s=0, smax=-1, pp=1, p=1, u=1;

                                              ^
submatrixsummax.cpp:31:11: error: 'smax' was not declared in this scope
     cout<<smax;

           ^
submatrixsummax.cpp:10:9: warning: unused variable 'sum' [-Wunused-variable]
     int sum=0;

         ^

Cum funcționează evaluarea?