View Compilation Error

0_0_29470214_11098.cpp: In function 'int main()':
0_0_29470214_11098.cpp:52:52: error: 'memset' was not declared in this scope
                    memset ( com, 0, sizeof ( com ) );
                                                    ^
0_0_29470214_11098.cpp:59:134: error: expected '}' at end of input
                                 case 'B' : scan_d(x);scan_d(y); x++;y++; if ( !mat[x][y] ) { modify ( x,y,1 ); mat[x][y] = 1; } break;
                                                                                                                                      ^
0_0_29470214_11098.cpp:59:134: error: expected '}' at end of input
0_0_29470214_11098.cpp:59:134: error: expected '}' at end of input
0_0_29470214_11098.cpp:59:134: error: expected '}' at end of input