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Simple. i will give it to you in c++ pseudo-code.
int[] thePictureArray = new int[200];
int[] theSelectedArray = new int[5];
/* fill thePictureArray with your pics, or if they are numberd 1 - 200 skip this step */
int select = 0;
int randomNumber = 0;
for( select = 0; select < 5; select++ )
{
boolean needNewNumber = true;
while( needNewNumber )
{
needNewNumber = false;
/* pick random number 0 - 200 */
randomNumber = random(0, 200);
/* check to see if it is used */
int check = 0;
for( check = 0; check <= select; check++ )
/* compare the number you picked with the numbers you have used */
if( randomNumber == theSelectedArray[check] )
needNewNumber = true;
}
theSelectedArray[select] = randomNumber; /* or thePictureArray[randomNumber];
}
that shoudl do it.
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