Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
120442 罗子童 22数字最多的字符串 C++ Compile Error 0 MS 0 KB 707 2025-05-25 19:12:38

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ char a[101],s[101]; cin>>a>>s; int a1=strlen(a),s1=strlen(s),a2=0,s2=0; for(int i=0;i<a1;i++){ if(a[i]>0&&9>a[i]) a2++; } for(int i=0;i<s1;i++){ if(s[i]>0&&9>s[i]) s2++; } if(a2>s2){ for(int i=len2-1;i>=0;i--) cout>>a[a1-1]; } else if { for(int i=len2-1;i>=0;i--) cout>>s[s1-1]; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:20:19: error: 'len2' was not declared in this scope
         for(int i=len2-1;i>=0;i--)
                   ^
Main.cc:21:17: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream}' and 'char')
             cout>>a[a1-1];
                 ^
Main.cc:21:17: note: candidate: operator>>(int, int) 
Main.cc:21:17: note:   no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream}' to 'int'
In file included from /usr/include/c++/5/string:53:0,
                 from /usr/include/c++/5/bits/locale_classes.h:40,
                 from /usr/include/c++/5/bits/ios_base.h:41,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/basic_string.tcc:1441:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>>(basic_istream<_CharT, _Traits>& __in,
     ^
/usr/include/c++/5/bits/basic_string.tcc:1441:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/istream:934:0,
                 from /usr/include/c++/5/iostream:40,
                 from Main.cc:1:
/usr/include/c++/5/bits/istream.tcc:955:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
     ^
/usr/include/c++/5/bits/istream.tcc:955:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/istream:934:0,
                 from /usr/include/c++/5/iostream:40,
                 from Main.cc:1:
/usr/include/c++/5/bits/istream.tcc:923:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
     ^
/usr/include/c++/5/bits/istream.tcc:923:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/iostream:40:0,
                 from Main.cc:1:
/usr/include/c++/5/istream:756:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, unsigned char&)
     operator>>(basic_istream& __in, unsigned char& __c)
     ^
/usr/include/c++/5/istream:756:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/iostream:40:0,
                 from Main.cc:1:
/usr/include/c++/5/istream:761:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, signed char&)
     operator>>(basic_istream& __in, signed char& __c)
     ^
/usr/include/c++/5/istream:761:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/iostream:40:0,
                 from Main.cc:1:
/usr/include/c++/5/istream:803:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, unsigned char*)
     operator>>(basic_istream& __in, unsigned char* __s)
     ^
/usr/include/c++/5/istream:803:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/iostream:40:0,
                 from Main.cc:1:
/usr/include/c++/5/istream:808:5: note: candidate: template std::basic_istream& std::operator>>(std::basic_istream&, signed char*)
     operator>>(basic_istream& __in, signed char* __s)
     ^
/usr/include/c++/5/istream:808:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
             cout>>a[a1-1];
                         ^
In file included from /usr/include/c++/5/iostream:40:0,
                 from Main.cc:1:
/usr/include/c++/5/istream:924:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&)
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
/usr/include/c++/5/istream:924:5: note:   template argument deduction/substitution failed:
Main.cc:21:25: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
             cout>>a[a1-1];
                         ^
Main.cc:23:13: error: expected '(' before '{' token
     else if {
             ^