View Compilation Error

0_0_30016158_3565.cpp: In function 'int main()':
0_0_30016158_3565.cpp:21:48: error: 'strcmp' was not declared in this scope
   if(a[i].g==a[j].g&&strcmp(a[i].name,a[j].name)>0) {t=a[i];a[i]=a[j];a[j]=t;}}
                                                ^