find.pi

program find;
var ints a[10] = {21,2,3,4,5,6,7,8,9,10};

var int cont;

func int find(int n) {
   var int i, res;
   i = 0
   res = i
   while(i < 10) then {
     if (a[i] == n) then {
       print("Found! ")
       res = i
       return res
     };
    i = i + 1
  };

  if (res == 0) then {
    return -2
  };
}

int main() {
  var int n;
  var int i;

  print("ENTER NUMBER TO SEARCH FOR: ")
  read(n)
  i = {find(n)}

  print("In position ", i + 1)
}