View Compilation Error

0_0_28015553_9491.cpp: In function 'void divplace(const area&, const area&, area&, area&, area&)':
0_0_28015553_9491.cpp:46:33: error: 'memset' was not declared in this scope
     memset(sa, false, sizeof(sa));
                                 ^
0_0_28015553_9491.cpp: In function 'int main()':
0_0_28015553_9491.cpp:116:47: error: 'memset' was not declared in this scope
             memset(cuted, false, sizeof(cuted));
                                               ^