#336
Expresie4
Să se scrie un program care citește numărul natural n
și determină suma S=1*n+2*(n-1)+3*(n-2)+...+n*1
.
Problema | Expresie4 | Operații I/O | tastatură/ecran |
---|---|---|---|
Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
Id soluție | #41623093 | Utilizator | |
Fișier | expresie4.cpp | Dimensiune | 343 B |
Data încărcării | 30 Ianuarie 2023, 15:52 | Scor / rezultat | Eroare de compilare |
expresie4.cpp:5:14: error: stray '#' in program std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:3: error: stray '\`' in program std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:3: error: stray '\`' in program expresie4.cpp:5:137: error: stray '#' in program std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp: In function 'int main()': expresie4.cpp:5:13: error: no match for 'operator&' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int') std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:13: note: candidates are: In file included from /usr/include/c++/4.8/ios:42:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from expresie4.cpp:1: /usr/include/c++/4.8/bits/ios_base.h:159:3: note: constexpr std::_Ios_Iostate std::operator&(std::_Ios_Iostate, std::_Ios_Iostate) operator&(_Ios_Iostate __a, _Ios_Iostate __b) ^ /usr/include/c++/4.8/bits/ios_base.h:159:3: note: no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream<char>}' to 'std::_Ios_Iostate' /usr/include/c++/4.8/bits/ios_base.h:119:3: note: constexpr std::_Ios_Openmode std::operator&(std::_Ios_Openmode, std::_Ios_Openmode) operator&(_Ios_Openmode __a, _Ios_Openmode __b) ^ /usr/include/c++/4.8/bits/ios_base.h:119:3: note: no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream<char>}' to 'std::_Ios_Openmode' /usr/include/c++/4.8/bits/ios_base.h:77:3: note: constexpr std::_Ios_Fmtflags std::operator&(std::_Ios_Fmtflags, std::_Ios_Fmtflags) operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b) ^ /usr/include/c++/4.8/bits/ios_base.h:77:3: note: no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream<char>}' to 'std::_Ios_Fmtflags' expresie4.cpp:5:37: error: expected ';' before ':' token std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:57: warning: statement has no effect [-Wunused-value] std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:138: error: lvalue required as unary '&' operand std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:145: warning: statement has no effect [-Wunused-value] std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^ expresie4.cpp:5:21: warning: label 'oaicite' defined but not used [-Wunused-label] std::cout ​\`oaicite:{"index":0,"invalid_reason":"Malformed citation << \"Introduceți numărul natural n: \";\n std::cin >>"}\`​ n; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema Expresie4 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.