Comments by Jahirul Sarker

Jahirul Sarker 9-Feb-23 20:38pm View

I edited in "What have you tried" section.

Jahirul Sarker 9-Feb-23 19:48pm View

Thank you. But still TLE.
Last submitted solution:
```
//package pac1;
import java.util.Scanner;
public class Main{

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);

int t = sc.nextInt();
while(t-->0) {
int n = sc.nextInt();
int k = sc.nextInt();
int sum=0;
int top = (int)Math.sqrt(n);
for(int i=1; i<=top; i++) {
if(n%i==0 ){
if(i%k!=0)sum+=i;
if((n/i)%k!=0)sum+=(n/i);
}
}
System.out.println(sum);
}

}
}
```

Jahirul Sarker 9-Feb-23 5:13am View

I searched in Google for the solution of this problem in Java, but found no results. A user asked on this same issue in UVA discussion site.. but no reply has been given.

I don't know how to solve this problem by maintaining a list of prime numbers.

Jahirul Sarker 9-Feb-23 4:40am View

"your optimized solution is flawed: it adds twice to the sum the square root of N." I edited the mistake.
I submitted your solution. But still getting TLE. @CPallini

Jahirul Sarker 3-Jan-23 11:52am View

It worked. I was really worried and kept submitting with little little change but couldn't figure out the problem. Your solution saved me. Thank you so much.

Jahirul Sarker 3-Jan-23 10:39am View

Removing Scanner... from main method gives "Cannot make a static reference to the non-static field sc" message.. and can't run the program in eclipse

Jahirul Sarker 3-Jan-23 7:00am View

Hello @Richard, thanks for responding. I removed that package line and submitted, but it doesn't solve the problem.. same runtime error happens and same message.

Jahirul Sarker 11-Mar-22 6:07am View

Deleted

I have found the solution.
1st term = max(a)/b + max(a)%b;
2nd term = max(a)/b + b - 2;
If 1st term>2nd term then answer is 1st term else 2nd term.
Thank you.

Jahirul Sarker 11-Mar-22 6:06am View

Now I understand.
1st term = max(a)/b + max(a)%b;
2nd term = max(a)/b + b - 2;
If 1st term>2nd term then answer is 1st term else 2nd term.
Thank you.

Jahirul Sarker 11-Mar-22 5:52am View

Between 1 and 10.. if b=3 then max(a/b) = 10/3= 3(int);
And max(a%b) = 8%3 = 2
So, max(a/b)+max(a%b) = 3+2 = 5;
But the maximum value of this function between 1 to 10 should be 4.

Jahirul Sarker 11-Mar-22 5:41am View

Deleted

Between 1 and 10.. if b=3 then max(a/b) = 10/3= 3(int);
And max(a%b) = 8%3 = 2
So, max(a/b)+max(a%b) = 3+2 = 5;
But the maximum value of this function between 1 to 10 should be 4.

Jahirul Sarker 27-Jan-22 18:55pm View

I will cover the topics of C from a good book(Teach yourself C) then I will start to learn C++.

Jahirul Sarker 25-Jan-22 6:15am View

Sir, I love competitive programming. Shouldn't I go with C++?

Jahirul Sarker 24-Jan-22 3:38am View

"It looks like "student code" - poorly indented"
I haven't read any books on C. I learned C's basic from a youtube C tutorial class.
I have no theoretical knowledge on C. But this year I admitted to a college with CSE major. I hope I will read some good books.

Jahirul Sarker 24-Jan-22 3:33am View

"any non-zero value is true in C so there is no need to compare "virtual booleans" with "0"."
while(givenValue)? instead of while(givenValue!=0)?

Jahirul Sarker 24-Jan-22 3:29am View

Actually, it was a brute force approach to solve a previous contest problem and all the variable name was a, b, c...... To post here I gave some name but still haven't changed anything more than that. It's a 50 lines code and took me more than half hours to implement it. So, I am looking for a shorter and less complex method to find nth palindrome.

Jahirul Sarker 16-Jan-22 21:53pm View

It's working but I want to keep makeArray function.

Jahirul Sarker 9-Dec-21 14:16pm View

Yes, now it's clear to me.
'0' in ASCII = 48
'1' in ASCII = 49
so, 1-0 is equivalent to 49-48.
Thank you

Jahirul Sarker 9-Dec-21 14:15pm View

Yeah, I can understand it now.
'0' in ASCII = 48
'1' in ASCII = 49
so, 1-0 is equivalent to 49-48.
Thank you so much.

Jahirul Sarker 9-Dec-21 14:13pm View

I can understand it now. Thank you.

Jahirul Sarker 19-Nov-21 6:56am View

"Changing to an array won't help that: the size of an integer doesn't change no matter how many of them you allocate, and you can't read a number "across elements" of an array."
Yes, I understand it now. I should use long or long long int. After using long long int, if I want to limit the size of input values, then I can simply use "%1000lld".

"When you declare an array, the name of the array is a pointer to the first element; these two staments are equivelent"
I get it.
Yes, your answer helps me a lot.
Thank you.

Jahirul Sarker 8-Nov-21 3:29am View

Deleted

I used 'printf("%s", str)' inside the loop and submitted to Codeforces judge. It was accepted. But it print results one by one not altogether. Should I skip 'printing-altogether' method for some time? What will be your suggestion for me?

Jahirul Sarker 8-Nov-21 3:09am View

Deleted

Please, test the code:
for(i=0; i<n; i++){
="" alp="j=last=0;
" fgets(str,="" sizeof="" str,="" stdin);
=""
="" while(str[j]!="\0" )="" {
="" if((str[j]="">='a')&&(str[j]<='z')){
alp++;
first=str[0];
last=str[alp-1];
numint=alp;

}
j++;
}

if(numint<=10){
printf("%s", str);
}else{
printf("%c%d%c\n", first, (numint-2), last);
}
/*k[i]=first;
z[i]=last;
h[i]=numint;
t[i]=str;*/

}
/*for(i=0; i

Jahirul Sarker 8-Nov-21 2:00am View

"The problem is that you don't save any strings"--- I am looking for a way to save all the strings but I can't find any. Please give me some hints.

Jahirul Sarker 7-Nov-21 23:46pm View

Deleted

Inside for loop: 'printf("%s", str);' can successfully print the strings... But it prints right after it get inputs. You see in my code that I want to store the strings first and then want to print all the strings altogether.... then it shows this warning: assignment to 'char' from 'char *' makes integer from pointer without a cast [-Wint-conversion].
so, how can I do that?

Jahirul Sarker 7-Nov-21 23:22pm View

"Some other observations:
scanf("%d\n", &n) doesn't do what you think. Try this and see what happens:
int n;
char str[100];
printf("How may strings? ");
scanf("%d\n", &n);
int i;
for(i = 0; i < n; ++i) {
printf("Enter string %d : ", i);
fgets(str, sizeof str, stdin);
}"
yes you are right.

Jahirul Sarker 7-Nov-21 23:14pm View

"warning: assignment to 'char' from 'char *' makes integer from pointer without a cast [-Wint-conversion]|"
I use codeblocks 20.03 in windows 10

Jahirul Sarker 28-Oct-21 7:27am View

"Undefined reference to 'closeEnough'"
"error: Id returned 1 exit status."
IDE is showing this message. I use CodeBlocks 20.03.
I added stdio library, stdlib lib, math lib... But Program doesn't run.

Jahirul Sarker 27-Oct-21 6:47am View

Thank you. Honestly, I wasn't aware of that. I was stupid. I wasn't aware of the points.
I will never repeat this mistake again.

Jahirul Sarker 26-Oct-21 23:09pm View

What should I do?

Jahirul Sarker 26-Oct-21 22:51pm View

Your answer for this problem is good.. But I can't figure out the solution. I am new to programming... please help.. I am exhausted.

Jahirul Sarker 26-Oct-21 22:48pm View

Please help me to solve it... I'am trying it for almost ten days.

Jahirul Sarker 24-Oct-21 2:31am View

Deleted

It's hard for me. I don't understand. Can you please make it simple? I never read epsilon before. Or you can help me with some resource that will help me to understand 'closeEnough' function.

Jahirul Sarker 24-Oct-21 2:23am View

1st two outputs are integers... But the third printf is printing float... that's why I am telling that third statement is not working.

Jahirul Sarker 21-Oct-21 9:22am View

I changed it to for(i=0; i<=2; i=i+0.2).
But it's not working. Same problem remains. Third condition is not working

Jahirul Sarker 16-Oct-21 3:41am View

Deleted

if(h==hour &&m== minute&& s==second){
break;
}
s++;
sleep(1);
system("cls");
But now it's working(please check.)
Thank you for your kind response.

Jahirul Sarker 30-Sep-21 3:12am View

Thank you so much for your precious suggestion. And today I solved the issue with this program. My solution is given below.[SOLUTION-3]

Comments by Jahirul Sarker (Top 37 by date)