View Compilation Error

0_0_16989130_19418.cpp: In function 'void trans_sys(char*, long long unsigned int)':
0_0_16989130_19418.cpp:32:19: error: 'strcmp' was not declared in this scope
     strcmp(str, "");
                   ^
0_0_16989130_19418.cpp: In function 'int main()':
0_0_16989130_19418.cpp:67:16: error: 'exit' was not declared in this scope
         exit(-1);
                ^
0_0_16989130_19418.cpp:73:16: error: 'exit' was not declared in this scope
         exit(-1);
                ^