#1049
Arrows
“Arrows” este un joc care se joacă pe o tablă dreptunghiulară a cărei suprafaţă este împărţită în NxM
celule, aranjate pe N
linii şi M
coloane. În fiecare celulă se află o săgeată (sus, jos, stânga sau dreapta), ca în figura de mai jos:
Când este la mutare, un jucător poate alege o poziţie de start pe care plasează un jeton, apoi deplasează jetonul la celula învecinată în sensul indicat de săgeată. Deplasarea continuă până când jetonul părăseşte tabla de joc, caz în care jucătorul obţine un punctaj egal cu numărul de celule parcurse de jetonul său.
Există însă poziţii de start denumite favorabile, pentru care jetonul nu va părăsi niciodată tabla de joc. De exemplu, toate poziţiile din figură cu fundal gri sunt favorabile. Jucătorul care alege o poziţie de start favorabilă obţine un punctaj egal cu numărul de celule distincte vizitate înmulţit cu 1000
.
Scrieţi un program care, cunoscând configuraţia tablei de joc, rezolvă una dintre următoarele cerinţe:
1. determină punctajul pe care îl obţine un jucător care plasează jetonul său pe o poziţie de start specificată;
2. determină numărul de celule favorabile de pe tabla de joc;
3. determină punctajul maxim pe care jucătorul îl poate obţine la o mutare, alegând convenabil poziţia de start.
OJI 2014, Clasa a VIII-a
Problema | Arrows | Operații I/O |
arrows.in /arrows.out
|
---|---|---|---|
Limita timp | 0.5 secunde | Limita memorie |
Total: 5 MB
/
Stivă 1 MB
|
Id soluție | #50558315 | Utilizator | |
Fișier | arrows.cpp | Dimensiune | 1.36 KB |
Data încărcării | 15 Aprilie 2024, 10:41 | Scor / rezultat | Eroare de compilare |
arrows.cpp: In function 'void task1(int, int)': arrows.cpp:31:9: error: 'fin' was not declared in this scope if(!fin) fin=x; ^ arrows.cpp: In function 'int task3(int&)': arrows.cpp:36:7: error: 'reutrn' was not declared in this scope else reutrn 0; ^ arrows.cpp:36:14: error: expected ';' before numeric constant else reutrn 0; ^ arrows.cpp: In function 'int main()': arrows.cpp:48:13: error: no match for 'operator<<' (operand types are 'std::ofstream {aka std::basic_ofstream<char>}' and 'void') cout<<task1(lin,col); ^ arrows.cpp:48:13: note: candidates are: In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:108:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(__ostream_type& (*__pf)(__ostream_type&)) ^ /usr/include/c++/4.8/ostream:108:7: note: no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&) {aka std::basic_ostream<char>& (*)(std::basic_ostream<char>&)}' /usr/include/c++/4.8/ostream:117:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>] operator<<(__ios_type& (*__pf)(__ios_type&)) ^ /usr/include/c++/4.8/ostream:117:7: note: no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&) {aka std::basic_ios<char>& (*)(std::basic_ios<char>&)}' /usr/include/c++/4.8/ostream:127:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(ios_base& (*__pf) (ios_base&)) ^ /usr/include/c++/4.8/ostream:127:7: note: no known conversion for argument 1 from 'void' to 'std::ios_base& (*)(std::ios_base&)' /usr/include/c++/4.8/ostream:166:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(long __n) ^ /usr/include/c++/4.8/ostream:166:7: note: no known conversion for argument 1 from 'void' to 'long int' /usr/include/c++/4.8/ostream:170:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(unsigned long __n) ^ /usr/include/c++/4.8/ostream:170:7: note: no known conversion for argument 1 from 'void' to 'long unsigned int' /usr/include/c++/4.8/ostream:174:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(bool __n) ^ /usr/include/c++/4.8/ostream:174:7: note: no known conversion for argument 1 from 'void' to 'bool' In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/istream:39, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/bits/ostream.tcc:91:5: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>] basic_ostream<_CharT, _Traits>:: ^ /usr/include/c++/4.8/bits/ostream.tcc:91:5: note: no known conversion for argument 1 from 'void' to 'short int' In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:181:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(unsigned short __n) ^ /usr/include/c++/4.8/ostream:181:7: note: no known conversion for argument 1 from 'void' to 'short unsigned int' In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/istream:39, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/bits/ostream.tcc:105:5: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>] basic_ostream<_CharT, _Traits>:: ^ /usr/include/c++/4.8/bits/ostream.tcc:105:5: note: no known conversion for argument 1 from 'void' to 'int' In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:192:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(unsigned int __n) ^ /usr/include/c++/4.8/ostream:192:7: note: no known conversion for argument 1 from 'void' to 'unsigned int' /usr/include/c++/4.8/ostream:201:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(long long __n) ^ /usr/include/c++/4.8/ostream:201:7: note: no known conversion for argument 1 from 'void' to 'long long int' /usr/include/c++/4.8/ostream:205:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(unsigned long long __n) ^ /usr/include/c++/4.8/ostream:205:7: note: no known conversion for argument 1 from 'void' to 'long long unsigned int' /usr/include/c++/4.8/ostream:220:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(double __f) ^ /usr/include/c++/4.8/ostream:220:7: note: no known conversion for argument 1 from 'void' to 'double' /usr/include/c++/4.8/ostream:224:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(float __f) ^ /usr/include/c++/4.8/ostream:224:7: note: no known conversion for argument 1 from 'void' to 'float' /usr/include/c++/4.8/ostream:232:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(long double __f) ^ /usr/include/c++/4.8/ostream:232:7: note: no known conversion for argument 1 from 'void' to 'long double' /usr/include/c++/4.8/ostream:245:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>] operator<<(const void* __p) ^ /usr/include/c++/4.8/ostream:245:7: note: no known conversion for argument 1 from 'void' to 'const void*' In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/istream:39, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/bits/ostream.tcc:119:5: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] basic_ostream<_CharT, _Traits>:: ^ /usr/include/c++/4.8/bits/ostream.tcc:119:5: note: no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}' In file included from /usr/include/c++/4.8/string:52:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) operator<<(basic_ostream<_CharT, _Traits>& __os, ^ /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: mismatched types 'const std::basic_string<_CharT, _Traits, _Alloc>' and 'void' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT) operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) ^ /usr/include/c++/4.8/ostream:471:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: deduced conflicting types for parameter '_CharT' ('char' and 'void') cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:476:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char) operator<<(basic_ostream<_CharT, _Traits>& __out, char __c) ^ /usr/include/c++/4.8/ostream:476:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'char' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:482:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char) operator<<(basic_ostream<char, _Traits>& __out, char __c) ^ /usr/include/c++/4.8/ostream:482:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'char' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:488:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char) operator<<(basic_ostream<char, _Traits>& __out, signed char __c) ^ /usr/include/c++/4.8/ostream:488:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'signed char' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:493:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char) operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c) ^ /usr/include/c++/4.8/ostream:493:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'unsigned char' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:513:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*) operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) ^ /usr/include/c++/4.8/ostream:513:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: mismatched types 'const _CharT*' and 'void' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/istream:39, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*) operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s) ^ /usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'const char*' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:530:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*) operator<<(basic_ostream<char, _Traits>& __out, const char* __s) ^ /usr/include/c++/4.8/ostream:530:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'const char*' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:543:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*) operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s) ^ /usr/include/c++/4.8/ostream:543:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'const signed char*' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:548:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*) operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s) ^ /usr/include/c++/4.8/ostream:548:5: note: template argument deduction/substitution failed: arrows.cpp:48:28: note: cannot convert 'task1(lin, col)' (type 'void') to type 'const unsigned char*' cout<<task1(lin,col); ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from arrows.cpp:1: /usr/include/c++/4.8/ostream:602:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&) operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x) ^ /usr/include/c++/4.8/ostream:602:5: note: template argument deduction/substitution failed: /usr/include/c++/4.8/ostream: In substitution of 'template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = void]': arrows.cpp:48:28: required from here /usr/include/c++/4.8/ostream:602:5: error: forming reference to void arrows.cpp: In function 'int task3(int&)': arrows.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema Arrows 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.