#226
Scrieţi un program care citeşte de la tastatură trei numere naturale n, a, b şi construieşte în memorie o matrice cu n linii şi n coloane formată numai din valori 0, 1, 2, 3 şi 4 astfel încât: elementele aflate pe linia a sau coloana b sunt egale cu 0, cele aflate deasupra liniei a şi la stânga coloanei b sunt egale cu 1, cele aflate deasupra liniei a şi la dreapta coloanei b sunt egale cu 2, cele aflate sub linia a şi la stânga coloanei b sunt egale cu 3, iar elementele aflate sub linia a şi la dreapta coloanei b sunt egale cu 4.
Variante Bacalaureat 2009
| Problema | GenMat13 | Operații I/O |
tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64700793 | Utilizator | |
| Fișier | genmat13.cpp | Dimensiune | 591 B |
| Data încărcării | 24 Mai 2026, 21:55 | Scor/rezultat | Eroare de compilare |
genmat13.cpp:3:21: error: conflicting declaration ‘int a’ 3 | int n,i,j,a[25][25],a,b; | ^ genmat13.cpp:3:11: note: previous declaration as ‘int a [25][25]’ 3 | int n,i,j,a[25][25],a,b; | ^ genmat13.cpp: In function ‘int main()’: genmat13.cpp:5:14: error: no match for ‘operator>>’ (operand types are ‘std::basic_istream<char>::__istream_type’ {aka ‘std::basic_istream<char>’} and ‘int [25][25]’) 5 | cin >> n >> a >> b; | ~~~~~~~~ ^~ ~ | | | | | int [25][25] | std::basic_istream<char>::__istream_type {aka std::basic_istream<char>} In file included from /usr/include/c++/13/iostream:42, from genmat13.cpp:1: /usr/include/c++/13/istream:325:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 325 | operator>>(void*& __p) | ^~~~~~~~ /usr/include/c++/13/istream:325:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: cannot bind non-const lvalue reference of type ‘void*&’ to an rvalue of type ‘void*’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:201:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 201 | operator>>(unsigned long long& __n) | ^~~~~~~~ /usr/include/c++/13/istream:201:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘long long unsigned int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(long long unsigned int)((int (*)[25])(& a))’ to ‘long long unsigned int&’ /usr/include/c++/13/istream:197:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 197 | operator>>(long long& __n) | ^~~~~~~~ /usr/include/c++/13/istream:197:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘long long int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(long long int)((int (*)[25])(& a))’ to ‘long long int&’ /usr/include/c++/13/istream:192:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 192 | operator>>(unsigned long& __n) | ^~~~~~~~ /usr/include/c++/13/istream:192:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘long unsigned int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(long unsigned int)((int (*)[25])(& a))’ to ‘long unsigned int&’ /usr/include/c++/13/istream:188:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 188 | operator>>(long& __n) | ^~~~~~~~ /usr/include/c++/13/istream:188:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘long int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(long int)((int (*)[25])(& a))’ to ‘long int&’ /usr/include/c++/13/istream:184:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 184 | operator>>(unsigned int& __n) | ^~~~~~~~ /usr/include/c++/13/istream:184:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘unsigned int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(unsigned int)((int (*)[25])(& a))’ to ‘unsigned int&’ /usr/include/c++/13/istream:181:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]’ (near match) 181 | operator>>(int& __n); | ^~~~~~~~ /usr/include/c++/13/istream:181:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(int)((int (*)[25])(& a))’ to ‘int&’ /usr/include/c++/13/istream:177:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 177 | operator>>(unsigned short& __n) | ^~~~~~~~ /usr/include/c++/13/istream:177:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘short unsigned int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(short unsigned int)((int (*)[25])(& a))’ to ‘short unsigned int&’ /usr/include/c++/13/istream:174:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]’ (near match) 174 | operator>>(short& __n); | ^~~~~~~~ /usr/include/c++/13/istream:174:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: error: invalid conversion from ‘int (*)[25]’ to ‘short int’ [-fpermissive] 5 | cin >> n >> a >> b; | ^ | | | int (*)[25] genmat13.cpp:5:17: error: cannot bind rvalue ‘(short int)((int (*)[25])(& a))’ to ‘short int&’ /usr/include/c++/13/istream:170:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match) 170 | operator>>(bool& __n) | ^~~~~~~~ /usr/include/c++/13/istream:170:7: note: conversion of argument 1 would be ill-formed: genmat13.cpp:5:17: warning: the address of ‘a’ will never be NULL [-Waddress] 5 | cin >> n >> a >> b; | ^ genmat13.cpp:3:11: note: ‘a’ declared here 3 | int n,i,j,a[25][25],a,b; | ^ genmat13.cpp:5:17: error: cannot bind non-const lvalue reference of type ‘bool&’ to a value of type ‘int (*)[25]’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:224:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ 224 | operator>>(long double& __f) | ^~~~~~~~ /usr/include/c++/13/istream:224:31: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘long double&’ 224 | operator>>(long double& __f) | ~~~~~~~~~~~~~^~~ /usr/include/c++/13/istream:220:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ 220 | operator>>(double& __f) | ^~~~~~~~ /usr/include/c++/13/istream:220:26: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘double&’ 220 | operator>>(double& __f) | ~~~~~~~~^~~ /usr/include/c++/13/istream:216:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ 216 | operator>>(float& __f) | ^~~~~~~~ /usr/include/c++/13/istream:216:25: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘float&’ 216 | operator>>(float& __f) | ~~~~~~~^~~ /usr/include/c++/13/istream:122:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ 122 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ^~~~~~~~ /usr/include/c++/13/istream:122:36: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)’ {aka ‘std::basic_istream<char>& (*)(std::basic_istream<char>&)’} 122 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/13/istream:126:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]’ 126 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~ /usr/include/c++/13/istream:126:32: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)’ {aka ‘std::basic_ios<char>& (*)(std::basic_ios<char>&)’} 126 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ /usr/include/c++/13/istream:133:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ 133 | operator>>(ios_base& (*__pf)(ios_base&)) | ^~~~~~~~ /usr/include/c++/13/istream:133:30: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘std::ios_base& (*)(std::ios_base&)’ 133 | operator>>(ios_base& (*__pf)(ios_base&)) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~ /usr/include/c++/13/istream:349:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]’ 349 | operator>>(__streambuf_type* __sb); | ^~~~~~~~ /usr/include/c++/13/istream:349:36: note: no known conversion for argument 1 from ‘int [25][25]’ to ‘std::basic_istream<char>::__streambuf_type*’ {aka ‘std::basic_streambuf<char>*’} 349 | operator>>(__streambuf_type* __sb); | ~~~~~~~~~~~~~~~~~~^~~~ In file included from /usr/include/c++/13/string:55, from /usr/include/c++/13/bits/locale_classes.h:40, from /usr/include/c++/13/bits/ios_base.h:41, from /usr/include/c++/13/ios:44, from /usr/include/c++/13/ostream:40, from /usr/include/c++/13/iostream:41: /usr/include/c++/13/bits/basic_string.tcc:827:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’ 827 | operator>>(basic_istream<_CharT, _Traits>& __in, | ^~~~~~~~ /usr/include/c++/13/bits/basic_string.tcc:827:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘int [25][25]’ 5 | cin >> n >> a >> b; | ^ In file included from /usr/include/c++/13/istream:1106: /usr/include/c++/13/bits/istream.tcc:975:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT&)’ 975 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) | ^~~~~~~~ /usr/include/c++/13/bits/istream.tcc:975:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘int [25][25]’) 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:846:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char&)’ 846 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) | ^~~~~~~~ /usr/include/c++/13/istream:846:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: cannot convert ‘a’ (type ‘int [25][25]’) to type ‘unsigned char&’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:851:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char&)’ 851 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c) | ^~~~~~~~ /usr/include/c++/13/istream:851:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: cannot convert ‘a’ (type ‘int [25][25]’) to type ‘signed char&’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:893:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT*)’ 893 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) | ^~~~~~~~ /usr/include/c++/13/istream:893:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘int [25]’) 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:936:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char*)’ 936 | operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) | ^~~~~~~~ /usr/include/c++/13/istream:936:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: cannot convert ‘a’ (type ‘int [25][25]’) to type ‘unsigned char*’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:942:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char*)’ 942 | operator>>(basic_istream<char, _Traits>& __in, signed char* __s) | ^~~~~~~~ /usr/include/c++/13/istream:942:5: note: template argument deduction/substitution failed: genmat13.cpp:5:17: note: cannot convert ‘a’ (type ‘int [25][25]’) to type ‘signed char*’ 5 | cin >> n >> a >> b; | ^ /usr/include/c++/13/istream:1096:5: note: candidate: ‘template<class _Istream, class _Tp> _Istream&& std::operator>>(_Istream&&, _Tp&&)’ 1096 | operator>>(_Istream&& __is, _Tp&& __x) | ^~~~~~~~ /usr/include/c++/13/istream:1096:5: note: template argument deduction/substitution failed: /usr/include/c++/13/istream: In substitution of ‘template<class _Istream, class _Tp> _Istream&& std::operator>>(_Istream&&, _Tp&&) [with _Istream = std::basic_istream<char>&; _Tp = int (&)[25][25]]’: genmat13.cpp:5:17: required from here /usr/include/c++/13/istream:1096:5: error: no type named ‘type’ in ‘struct std::enable_if<false, void>’ genmat13.cpp:8:17: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] 8 | if(i==a || j==b) | ~^~~ genmat13.cpp:10:22: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] 10 | else if(i<a && j<b) | ~^~ genmat13.cpp:12:22: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] 12 | else if(i<a && j>b) | ~^~ genmat13.cpp:14:22: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] 14 | else if(i>a && j<b) | ~^~
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema GenMat13 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.