generating random num from 0 to n in c++ code example

Example 1: cpp random int

v1 = rand() % 100;         // v1 in the range 0 to 99
v2 = rand() % 100 + 1;     // v2 in the range 1 to 100
v3 = rand() % 30 + 1985;   // v3 in the range 1985-2014

Example 2: c++ random between two values

int randNum = rand()%(max-min + 1) + min;