Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
131721 黎瑾萱 指针遍历字符串 C++ Compile Error 0 MS 0 KB 245 2025-10-01 10:51:57

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ char a[35]; cin<<a; int len = strlen(a); char c = a[len-1]; char *p=a; int sum=0; for(int i=0;<len;i++){ if(*(p+i)==c){ sum++; } } cout<<sum; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:5: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream}' and 'char [35]')
  cin< std::basic_ostream<_CharT, _Traits>& std::__cxx11::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::sub_match<_Bi_iter>&)
     operator<<(basic_ostream<_Ch_type, _Ch_traits>& __os,
     ^
/usr/include/c++/5/bits/regex.h:1480:5: note:   template argument deduction/substitution failed:
Main.cc:5:7: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  cin<