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public int[] tenRun(int[] nums) {
int len =nums.length;
int[] arr=new int[len];
for(int i=0;i<len;i++){
if(nums[i]<10){
arr[i]=nums[i]*10;
}
else{
arr[i]=nums[i];
}
}
return arr;
}
tenRun([2, 10, 3, 4, 20, 5]) → [2, 10, 10, 10, 20, 20]i thought above should be as below according to challenge description?
For each multiple of 10 in the given array, change all the values following it to be that multiple of 10, until encountering another multiple of 10. So {2, 10, 3, 4, 20, 5} yields {2, 10, 10, 10, 20, 20}.//however 3,4 became 10.10 i thought 5 should become 10tenRun([2, 10, 3, 4, 20, 5]) → [2, 10, 10, 10, 20, 20]
tenRun([2, 10, 3, 4, 20, 5]) → [2, 10, 10, 10, 20, 20]
tenRun([10, 1, 20, 2]) → [10, 10, 20, 20]
tenRun([10, 1, 9, 20]) → [10, 10, 10, 20]
Doing it by hand:
tenRun([2, 20, 3, 4, 10, 5]
2 - no change
20 - multiple of 10 - no change
3 - change it 20 since it follows that multiple of 10
4 - change it 20 since it follows that multiple of 10
10 - multiple of 10 - no change
5 - change it 10 since it follows that multiple of 10
You don't change the values that are multiples of 10.>> However 3,4 became 10.10 i thought 5 should become 10
What multiple of 10 does the 5 follow???//[b]not sure what it means..10*0 is 0 10*1 is 10 so 5 falls in between 0 and 5..when you say What multiple of 10 does the 5 follow i am not following it?[/b]
What do you think the results of the following should be:
tenRun([2, 20, 3, 4, 10, 5]) → ???tenRun([2, 20, 10, 10, 10, 10])
No, that is not correct
For each multiple of 10 in the given array, change all the values following it to be that multiple of 10
Doing it by hand:
tenRun([2, 20, 3, 4, 10, 5]
2 - no change
20 - multiple of 10 - no change
3 - change it 20 since it follows that multiple of 10
4 - change it 20 since it follows that multiple of 10
10 - multiple of 10 - no change
5 - change it 10 since it follows that multiple of 10//[b][i]but challenge expecting to change it to 20 not 10[/i][/b]
still thinking above
What multiple of 10 does the 5 follow in the array?
is the same as
What multiple of 10 comes before 5 in the array?
The answer in this case is 20. -- So change the 5 to 20.
public int[] tenRun(int[] nums) {
int len =nums.length;
int[] arr=new int[len];
for(int i=0;i<len;i++){
if((nums[i]/10)==0){
arr[i]=10*(nums[i]%10);
}
else{
arr[i]=nums[i];
}
}
return arr;
}
i think now i understood challene trying to fix it and failing due to not able to start from first occurence of 10 multiple but starting from index 0
Expected Run
tenRun([2, 10, 3, 4, 20, 5]) → [2, 10, 10, 10, 20, 20] [20, 10, 30, 40, 20, 50] X
tenRun([10, 1, 20, 2]) → [10, 10, 20, 20] [10, 10, 20, 20] OK
tenRun([10, 1, 9, 20]) → [10, 10, 10, 20] [10, 10, 90, 20] X
tenRun([1, 2, 50, 1]) → [1, 2, 50, 50] [10, 20, 50, 10] X
tenRun([1, 20, 50, 1]) → [1, 20, 50, 50] [10, 20, 50, 10] X
tenRun([10, 10]) → [10, 10] [10, 10] OK
tenRun([10, 2]) → [10, 10] [10, 20] X
tenRun([0, 2]) → [0, 0] [0, 20] X
tenRun([1, 2]) → [1, 2] [10, 20] X
tenRun([1]) → [1] [10] X
tenRun([]) → [] [] OK
other tests
X
Your progress graph for this problem
how to use moduls operator for this challenge?You can search for the condition
nums[i]%10) == 0
that will be true for multiples of ten.
4. if yes multiply subsequent elements by same previous element value?No. As d-glitch has posted
... MULTIPLY are not mentioned in the Challenge.Multiply is an arithmetic operation. If we multiply 3 by 4 the result is 12. The numbers that are multiples of ten are 10, 20 ,30, 40, and so on.
public int[] tenRun(int[] nums) {
int totalLen =nums.length;
//int[] arr=new int[len];
int firstVal=0;
for(int i=0;i<totalLen;i++){
if((nums[i]%10)==0){
firstVal=i;
break;
}
}
for(int k=firstVal;k<totalLen;k++){
if((nums[k]%10)==0){
secondVal=k;
break;
}
}
return nums;
}
public int[] tenRun(int[] nums) {
int totalLen =nums.length;
//int[] arr=new int[len];
int val=0;
boolean tenFlag=false;
for(int i=0;i<totalLen;i++){
if((nums[i]%10)==0){
val=nums[i];
tenFlag=true;
}
else if((nums[i]%10)!=0&&tenFlag){
nums[i]=val;
}
}
return nums;
}
now I passed all tests
Expected
Run
tenRun([2, 10, 3, 4, 20, 5]) → [2, 10, 10, 10, 20, 20] [2, 10, 10, 10, 20, 20] OK
tenRun([10, 1, 20, 2]) → [10, 10, 20, 20] [10, 10, 20, 20] OK
tenRun([10, 1, 9, 20]) → [10, 10, 10, 20] [10, 10, 10, 20] OK
tenRun([1, 2, 50, 1]) → [1, 2, 50, 50] [1, 2, 50, 50] OK
tenRun([1, 20, 50, 1]) → [1, 20, 50, 50] [1, 20, 50, 50] OK
tenRun([10, 10]) → [10, 10] [10, 10] OK
tenRun([10, 2]) → [10, 10] [10, 10] OK
tenRun([0, 2]) → [0, 0] [0, 0] OK
tenRun([1, 2]) → [1, 2] [1, 2] OK
tenRun([1]) → [1] [1] OK
tenRun([]) → [] [] OK
other tests
OK
public int[] tenRun(int[] nums) {
int current = 1;
for(int i=0;i<nums.length; i++){
if((nums[i]%10) == 0){
current = nums[i];
}
else{
if(current != 1) nums[i] = current;
}
}
return nums;
}
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