View Compilation Error

0_0_34957382_14229.cpp: In function 'bool cmp(point, point)':
0_0_34957382_14229.cpp:29:24: error: 'strcmp' was not declared in this scope
 if(strcmp(a.mint,b.mint)<0) return 1;
                        ^
0_0_34957382_14229.cpp: In function 'bool cmp1(point, point)':
0_0_34957382_14229.cpp:41:28: error: 'strcmp' was not declared in this scope
     if(strcmp(a.maxt,b.maxt)>0) return 1;
                            ^