var number_n= prompt("Challenge: Represent any number n in sum of given numbers \n ( 1, 2, 5, 10, 20, 50, 100, 500, 2000) \n e.g. 55 = 50 + 5 \n Please enter a number for n \n"); //alert(" N= " + number_n); function writesum(n) { sum=""; n_2000=Math.floor(n/2000); remain_1=n-n_2000*2000; n_500=Math.floor(remain_1/500); remain_2=remain_1-n_500*500; n_100=Math.floor(remain_2/100); remain_3=remain_2-n_100*100; n_50=Math.floor(remain_3/50); remain_4=remain_3-n_50*50; n_20=Math.floor(remain_4/20); remain_5=remain_4-n_20*20; n_10=Math.floor(remain_5/10); remain_6=remain_5-n_10*10; n_5=Math.floor(remain_6/5); remain_7=remain_6-n_5*5; n_2=Math.floor(remain_7/2); n_1=remain_7-n_2*2; switch(n_2000) { case 0: break; case 1: sum=2000+"+
";break; default: sum=n_2000+"*2000 +
"; } switch(n_500) { case 0: break; case 1: sum=sum+500+"+
";break; default: sum=sum+n_500+"*500 +
"; } switch(n_100) { case 0: break; case 1: sum=sum+100+"+
";break; default: sum=sum+n_100+"*100 +
"; } switch(n_50) { case 0: break; case 1: sum=sum+50+"+
";break; default: sum=sum+n_50+"*50 +
"; } switch(n_20) { case 0: break; case 1: sum=sum+20+"+
";break; default: sum=sum+n_20+"*20 +
"; } switch(n_10) { case 0: break; case 1: sum=sum+10+"+
";break; default: sum=sum+n_10+"*10 +
"; } switch(n_5) { case 0: break; case 1: sum=sum+5+"+
";break; default: sum=sum+n_5+"*5 +
"; } switch(n_2) { case 0: break; case 1: sum=sum+2+"+
";break; default: sum=sum+n_2+"*2 +
"; } switch(n_1) { case 0: break; case 1: sum=sum+1+"
";break; default: sum=sum+n_1+"*1
"; } if(sum.charAt(sum.length - 6)=="+"){ sum=sum.substring(0, sum.length - 6)+ "
"; } document.write("You have entered N= " + number_n +".
N= " + sum + "
") ; } writesum(number_n);

Challenge_August7th