运行 ID: 107118

Main.cc: In function ‘void dfs(char*, int)’:
Main.cc:28:13: error: declaration of ‘int a’ shadows a parameter
         int a;
             ^
Main.cc:32:32: error: invalid conversion from ‘int’ to ‘char*’ [-fpermissive]
                 a = c(a, b[i].d);
                                ^
Main.cc:11:9: note:   initializing argument 1 of ‘int c(char*, char*)’
     int c(char a[], char b[])
         ^