View Compilation Error

0_0_20679983_13445.cpp:6:1: error: 'dint' does not name a type
 dint floor[255],flag[255];
 ^
0_0_20679983_13445.cpp: In function 'void BFS(int, int)':
0_0_20679983_13445.cpp:11:5: error: 'flag' was not declared in this scope
     flag[S]=1;//先将它初始化
     ^
0_0_20679983_13445.cpp:19:20: error: 'floor' was not declared in this scope
         int next=t+floor[t];//i,ki
                    ^
0_0_20679983_13445.cpp: In function 'int main()':
0_0_20679983_13445.cpp:46:29: error: 'floor' was not declared in this scope
                 scanf("%d",&floor[i]);
                             ^
0_0_20679983_13445.cpp:48:20: error: 'flag' was not declared in this scope
             memset(flag,0,sizeof(flag));
                    ^