Show a nested loop which searches a two-dimensional array filled with random numbers uniformly distributed over 



[
1
,
…
,
20
]


{\displaystyle [1,\ldots ,20]}

.

The loops iterate rows and columns of the array printing the elements until the value 



20


{\displaystyle 20}

 is met.

Specifically, this task also shows how to break out of nested loops.



Related tasks

   Loop over multiple arrays simultaneously
   Loops/Break
   Loops/Continue
   Loops/Do-while
   Loops/Downward for
   Loops/For
   Loops/For with a specified step
   Loops/Foreach
   Loops/Increment loop index within loop body
   Loops/Infinite
   Loops/N plus one half
   Loops/Nested
   Loops/While
   Loops/with multiple ranges
   Loops/Wrong ranges


const N=5;
var rows=(0).pump(N,List, (0).pump.fp(N,List,(1).random.fpM("1-",21)) );
try{
   foreach r in (N){
      foreach c in (N){ 
         x:=rows[r][c]; x.print(",");
         if (x==20) { println("Found it!"); throw(Exception.Generic); }
      }
   }
   println("Not found");
}catch(Generic){}