|
| 1 | +// import visualization libraries { |
| 2 | +importorg.algorithm_visualizer.*; |
| 3 | +importjava.util.Random; |
| 4 | +// } |
| 5 | + |
| 6 | +classMain { |
| 7 | +// define tracer variables { |
| 8 | +Array1DTracerarray1dTracer =newArray1DTracer("Set"); |
| 9 | +LogTracerlogTracer =newLogTracer("Console"); |
| 10 | +// } |
| 11 | + |
| 12 | +// define input variables |
| 13 | +intn; |
| 14 | +ints[]; |
| 15 | +intd; |
| 16 | + |
| 17 | +voidsolve() |
| 18 | +{ |
| 19 | +int[]sel=newint[n+1]; |
| 20 | +intk=0,sum=0,found=0; |
| 21 | +sel[0]=1; |
| 22 | +array1dTracer.select(k); |
| 23 | +Tracer.delay(); |
| 24 | +while(true) { |
| 25 | +if(k<n &&sel[k]==1) { |
| 26 | +if(sum+s[k]==d) |
| 27 | +{ |
| 28 | +found=1; |
| 29 | +logTracer.print("{"); |
| 30 | +for(inti=0;i<n;i++) |
| 31 | +if(sel[i]==1) |
| 32 | +logTracer.print(s[i]+" "); |
| 33 | +logTracer.println("}"); |
| 34 | +sel[k]=0; |
| 35 | +Tracer.delay(); |
| 36 | +array1dTracer.deselect(k); |
| 37 | +Tracer.delay(); |
| 38 | +} |
| 39 | +elseif(sum+s[k]<d) |
| 40 | +sum+=s[k]; |
| 41 | +else{ |
| 42 | +sel[k]=0; |
| 43 | +array1dTracer.deselect(k); |
| 44 | +Tracer.delay(); |
| 45 | +} |
| 46 | +} |
| 47 | +else |
| 48 | +{ |
| 49 | +k--; |
| 50 | +while(k>=0 &&sel[k]==0) |
| 51 | +k--; |
| 52 | +if(k<0) |
| 53 | +break; |
| 54 | +sel[k]=0; |
| 55 | +array1dTracer.deselect(k); |
| 56 | +Tracer.delay(); |
| 57 | +sum-=s[k]; |
| 58 | +} |
| 59 | +k++; |
| 60 | +if(k<n){ |
| 61 | +sel[k]=1; |
| 62 | +array1dTracer.select(k); |
| 63 | +Tracer.delay(); |
| 64 | +} |
| 65 | +} |
| 66 | +if(found==0) |
| 67 | +logTracer.println("Not possible subsets"); |
| 68 | +} |
| 69 | + |
| 70 | +Main() { |
| 71 | +// visualize { |
| 72 | +Layout.setRoot(newVerticalLayout(newCommander[]{array1dTracer,logTracer})); |
| 73 | +Tracer.delay(); |
| 74 | +// } |
| 75 | +n=10; |
| 76 | +//Randomizing the array{ |
| 77 | +s=newint[n]; |
| 78 | +Randomr=newRandom(); |
| 79 | +for(inti=0;i<n;i++) |
| 80 | +s[i]=r.nextInt(30); |
| 81 | +d=r.nextInt(100); |
| 82 | +//} |
| 83 | + |
| 84 | +logTracer.print("The Given set is: "); |
| 85 | +for(intx:s) |
| 86 | +logTracer.print(x+","); |
| 87 | +logTracer.println("\nDesired sum is:"+d); |
| 88 | +logTracer.println("The possible subsets of sum "+d+" are: "); |
| 89 | +array1dTracer.set(s); |
| 90 | +Tracer.delay(); |
| 91 | +solve(); |
| 92 | + } |
| 93 | + |
| 94 | +publicstaticvoidmain(String[]args) { |
| 95 | +newMain(); |
| 96 | + } |
| 97 | +} |