运行 ID: 91848

Main.cc:12:13: error: redefinition of ‘int map [300][300]’
 int map[N][N] ;
             ^
Main.cc:9:5: note: ‘int map [300][300]’ previously declared here
 int map[N][N]; // 棋盘,1表示可放,0表示不可放
     ^~~