int rand7(){
while(1){
int res = 5*rand5()+rand5();
if(res < 21)
return res%7;
}
return 0;
}
int RandomNum::generateRand7()
{
srand(time(NULL));
while (true)
{
int x=rand5()*5+rand5();
if (x<21)
return x%7;
}
}
int rand7()
{
std::stringstream ss;
while (true) {
ss << rand5() << rand5();
int rc = lookup[ss.str()];
ss.str("");
if (rc == 0) {
//std::cout << "generated 0\n";
continue;
}
return rc;
}
assert(false);
return 0;
}
int rand7(){
int i;
int temp = 0;
for(i = 0; i < 8; i++){
temp += rand5();
}
return temp%8;
}
int rand7() {
int vals[5][5] = {
{1, 1, 1, 2, 2},
{2, 3, 3, 3, 4},
{4, 4, 5, 5, 5},
{6, 6, 6, 7, 7},
{7, 0 ,0 ,0 ,0}
}
int cIndex = rand5();
int rIndex = rand5();
while(vals[rIndex][cIndex] == 0) {
cIndex = rand5();
rIndex = rand5();
}
return vals[rIndex][cIndex];
}
int rand7(void) {
int n = 5*(rand5()-1)+(rand5()-1);
while (n > 20)
n = 5*(rand5()-1)+(rand5()-1);
return (n%7)+1;
}