View Compilation Error

0_0_20452100_8513.cpp: In function 'int main()':
0_0_20452100_8513.cpp:13:37: error: 'memset' was not declared in this scope
         memset(count,0,sizeof(count));
                                     ^
0_0_20452100_8513.cpp:20:38: error: 'strcmp' was not declared in this scope
                 if(strcmp(temp,str[j])==0)
                                      ^