c++ rand srand code example

Example 1: cpp rand

std::srand(std::time(nullptr)); 		// set rand seed
v1 = std::rand() % 100;         // v1 in the range 0 to 99
v2 = std::rand() % 100 + 1;     // v2 in the range 1 to 100
v3 = std::rand() % 30 + 1985;   // v3 in the range 1985-2014

Example 2: c++ rand include

#include<cstdlib>