A small program about the random function rand ()

Small program of the Random Function rand ():

#include <iostream>

#include <time.h>

#include <fstream>

#include <windows.h>

using namespace Std;

unsigned t[300],temp;

void Creat_rand ()//functions that produce random numbers

{

Long I=1;

cout<< "The random number generated for you is as follows:" <<endl;

Srand (Time (0)); Use this function to set the seed value so that the random number generated each time is different

for (i=1;i<21;)

{

Temp= (rand ()%10000+1000);

if (temp>999 && temp<=9999)

{

T[i]=temp;

cout<< "<<i<<" <<t[i]<< "";

if (i%5==0)

cout<<endl;

i++;

}

}

}

void Search_number (unsigned t[],int n)/Lookup function

{

cout<<endl;

DeleteFile ("Randnumber.txt");

System ("pause");

cout<< "Two digits equal to random number:" <<endl;

Ofstream output ("Randnumber.txt", ios::out);

int cand1,cand2;

for (int i=1;i<n;i++)

{

cand1=t[i]%10;

CAND2=T[I]%100/10;

if (CAND1==CAND2)

{

cout<<t[i]<< "";

output<<t[i]<< "";

}

}

Output.close ();

}

void main ()//main function

{

Creat_rand ();

Search_number (t,20);

}