View Compilation Error

0_0_24499523_10206.cpp: In function 'int main()':
0_0_24499523_10206.cpp:35:82: error: 'strcmp' was not declared in this scope
  while(scanf("%lld %s",&target,quotation)!=EOF&&target!=0&&strcmp(quotation,"END")!=0)
                                                                                  ^
0_0_24499523_10206.cpp:37:32: error: 'strlen' was not declared in this scope
   int length = strlen(quotation);
                                ^