运行 ID: 29662

Main.cc: In function ‘int main()’:
Main.cc:21:32: error: expected ‘;’ before ‘]’ token
    if(a[i][j-1]=='.') a[i][j-1]]='!';
                                ^
Main.cc:21:31: warning: statement has no effect [-Wunused-value]
    if(a[i][j-1]=='.') a[i][j-1]]='!';
                       ~~~~~~~~^