View Compilation Error

0_0_29349273_20220.cpp: In function 'int main()':
0_0_29349273_20220.cpp:93:40: error: 'memset' was not declared in this scope
         memset (vis, false, sizeof(vis));  
                                        ^
0_0_29349273_20220.cpp:94:23: error: expected '}' at end of input
         bfs (r-1, c-1);    //倒过来%C
                       ^
0_0_29349273_20220.cpp:94:23: error: expected '}' at end of input