View Compilation Error

0_0_29504092_28167.cpp: In function 'void initinitinit()':
0_0_29504092_28167.cpp:149:15: error: 'time' was not declared in this scope
   srand(time(0));
               ^
0_0_29504092_28167.cpp: In function 'int main()':
0_0_29504092_28167.cpp:161:15: error: 'time' was not declared in this scope
   srand(time(0));
               ^