View Compilation Error

0_0_18173635_9086.cpp: In function 'int Search(char*, int)':
0_0_18173635_9086.cpp:21:29: error: 'strcmp' was not declared in this scope
   if(strcmp(s,dic[dicset][i])==0)
                             ^
0_0_18173635_9086.cpp: In function 'int main()':
0_0_18173635_9086.cpp:34:24: error: 'strcmp' was not declared in this scope
   if(strcmp(str,"@END@")==0)
                        ^
0_0_18173635_9086.cpp:42:21: error: 'strlen' was not declared in this scope
   while(i<strlen(str))
                     ^
0_0_18173635_9086.cpp:46:26: error: 'strcpy' was not declared in this scope
   strcpy(dic[0][cnt],str1);
                          ^
0_0_18173635_9086.cpp:68:35: error: 'strlen' was not declared in this scope
     for(i=1;i<strlen(dic[0][index])-1;i++)
                                   ^