View Compilation Error

0_0_36683260_786.cpp: In function 'int maxmatch()':
0_0_36683260_786.cpp:35:30: error: 'memset' was not declared in this scope
     memset(cx, -1, sizeof(cx));
                              ^
0_0_36683260_786.cpp: In function 'int main()':
0_0_36683260_786.cpp:55:35: error: 'memset' was not declared in this scope
         memset(Map, 0, sizeof(Map));
                                   ^