View Compilation Error

0_0_14534740_153.cpp: In function 'bool Miller_Rabbin(long long int)':
0_0_14534740_153.cpp:98:20: error: 'time' was not declared in this scope
     srand(time(NULL));  
                    ^
0_0_14534740_153.cpp: In function 'long long int pollard_rho(long long int, long long int)':
0_0_14534740_153.cpp:124:20: error: 'time' was not declared in this scope
     srand(time(NULL));  
                    ^