运行 ID: 127070

Main.cc:2:1: error: ‘usnig’ does not name a type
 usnig namespace std;
 ^~~~~
Main.cc: In function ‘int main()’:
Main.cc:8:2: error: ‘cin’ was not declared in this scope
  cin>>n;
  ^~~
Main.cc:8:2: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:60:18: note:   ‘std::cin’
   extern istream cin;  /// Linked to standard input
                  ^~~
Main.cc:14:16: warning: comparison with string literal results in unspecified behavior [-Waddress]
    if(b[i][j]=="@")
                ^~~
Main.cc:14:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:32:23: warning: comparison with string literal results in unspecified behavior [-Waddress]
       if(b[i-1+y][j]=="*")
                       ^~~
Main.cc:32:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:35:20: error: invalid conversion from ‘const char*’ to ‘char’ [-fpermissive]
        b[i-1+y][j]="@";
                    ^~~
Main.cc:38:23: warning: comparison with string literal results in unspecified behavior [-Waddress]
       if(b[i][j-1+y]=="*")
                       ^~~
Main.cc:38:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:41:20: error: invalid conversion from ‘const char*’ to ‘char’ [-fpermissive]
        b[i][j-1+y]="@";
                    ^~~
Main.cc:49:2: error: ‘cout’ was not declared in this scope
  cout<& __os)
     ^~~~