Multiples of 3

Problem code: MULTQ3

All submissions for this problem are available.

There are N numbers a[0],a[1]..a[N - 1]. Initally all are 0. You have to perform two types of operations :

1) Increase the numbers between indices A and B by 1. This is represented by the command "0 A B"

2) Answer how many numbers between indices A and B are divisible by 3. This is represented by the command "1 A B".

Input :

The first line contains two integers, N and Q. Each of the next Q lines are either of the form "0 A B" or "1 A B" as mentioned above.

Output :

Output 1 line for each of the queries of the form "1 A B" containing the required answer for the corresponding query. 

Sample Input :
4 7
1 0 3
0 1 2
0 1 3
1 0 0
0 0 3
1 3 3
1 0 3


Sample Output :
4
1
0
2


Constraints :
1 <= N <= 100000
1 <= Q <= 100000
0 <= A <= B <= N - 1
Author: syco
Date Added: 11-04-2010
Time Limit: 1 sec
Source Limit: 50000 Bytes
Languages: ADA, ASM, BASH, BF, C, C99 strict, CAML, CLOJ, CLPS, CPP 4.0.0-8, CPP 4.3.2, CS2, D, ERL, F#, FORT, GO, HASK, ICK, ICON, JAR, JAVA, JS, LISP clisp, LISP sbcl, LUA, NEM, NICE, PAS fpc, PAS gpc, PERL, PERL6, PHP, PIKE, PRLG, PYTH, PYTH 3.1.2, RUBY, SCALA, SCM guile, SCM qobi, ST, TEXT, WSPC


Comments

@Admins: Please have a look

uniquecode @ 23 Oct 2010 10:42 AM

@Admins: Please have a look at my submission. It is giving me correct result for every test case,, but here it is showing wrong answer.. i can't figure out what's wrong with my code. Please help!

Somebody please help! What's

uniquecode @ 23 Oct 2010 01:29 PM

Somebody please help! What's wrong with my code, why it is giving wrong answer?? I can't check it more.., somebody please help

its giving tle error . but in

phantom11 @ 31 Mar 2011 05:41 PM

its giving tle error . but in my pc its giving output in microsecs

smebody plz help

phantom11 @ 31 Mar 2011 05:42 PM

smebody plz help

#include<iostream>using

bhogal08547 @ 1 Apr 2011 04:48 AM 
  • #include<iostream>
  • using namespace std;
  • int main()
  • { 
  •     int a[10000]={0},i,c,n,q,x,y,z;
  •     cin>>n>>q;
  •     while(q--)
  •     { c=0;
  •       cin>>x>>y>>z;
  •       if(x==0)
  •         {  for(i=0;i<n;i++)
  •             { if(i>=y&&i<=z)
  •                 a[i]++;
  •             }   
  •         }
  •         else
  •         { for(i=0;i<n;i++)
  •           if(i>=y&&i<=z)
  •             if(a[i]%3==0)
  •                c++;
  •           cout<<c<<endl;  
  •         }
  •     
  •    }
  • }

    • dont understand by i am getting runtime error..
    please any help me

    It seems to be working fine

    vimard @ 16 May 2011 02:41 PM

    It seems to be working fine mate.. I am not getting any runtime error

    Try this int

    vimard @ 16 May 2011 03:04 PM

    Try this

    int a[100000]={0},i,c,n,q,x,y,z;

    I think you won't get the runtime error

    Anyone help me..!!! This code

    abhinav_maini @ 3 Jul 2011 02:02 PM
    Anyone help me..!!! This code is giving Runtime error... import java.io.*; class multiples { public static void main(String argsp[])throws IOException { int i,j,n; BufferedReader input=new BufferedReader(new InputStreamReader(System.in)); n=Integer.parseInt(input.readLine()); PrintWriter pw = new PrintWriter(System.out, true); pw.print("Multiples of 3 are:"); for(i=0;i<=n;i++) { if(i%3==0) System.out.print(i+" "); } } }

    Is there anyway by which we

    cs5090240 @ 21 Sep 2011 12:58 AM
    Is there anyway by which we can know the running time of our program?

    No, there isn't. The judging

    shubh09 @ 21 Sep 2011 02:53 PM
    No, there isn't. The judging machines just stop executing the program once the time of execution exceeds the time limit for the problem. They don't wait for your program to return the result. Otherwise someone might submit a program containing an infinite loop, and the judging machine will have to wait forever for the result.

    Getting run time error even

    sauravprakash @ 1 Nov 2011 12:17 PM
    Getting run time error even if the code is running fine in my compiler.

    I'm submitting the code in

    voodoo_child @ 30 Nov 2011 03:42 PM
    I'm submitting the code in python.... it's giving correct output on the system .. here's it giving runtime error. Anyidea what the input method..... I'm using raw_input() ... shud i use any other input source?

    Fenwick tree?

    flareneos @ 30 Nov 2011 03:49 PM
    Fenwick tree?

    someone help me ...i can't

    balabarath @ 2 Dec 2011 07:31 PM
    someone help me ...i can't understand the problem...

    I really don't get it: The

    zunera @ 3 Dec 2011 12:41 AM
    I really don't get it: The time limit is only 1s but all solutions exceeds it!! Are all those algorithms really not as good or is the time limit not properly chosen?! I also exceed the time limit with my java solution :(

    @Admins: Please check this

    zunera @ 3 Dec 2011 02:57 AM
    @Admins: Please check this problem/testcases/..., I wasted a lot of time and I have no clue what for!

    @admin please could you check

    yanluis07 @ 12 Dec 2011 02:25 AM
    @admin please could you check what is wrong with my solution i don't find any problem

    The code is working fine on

    codephoenix @ 21 Feb 2012 04:45 PM
    The code is working fine on ma machine i have tried to optimise it but it still gives time limit exceeded

    this is my solution in python

    xonix_monty @ 23 Mar 2012 11:47 PM
    this is my solution in python 3.1 http://codepad.org/di1l2kM2 it is working fine on my system but Codechef always gives runtime error??

    Here I see time limit of 1

    karora @ 1 Apr 2012 01:40 AM
    Here I see time limit of 1 sec and see execution of accepted entries as 5 to 8 even 10 sec. May I know what is exact time limit for successful execution.

    How is this different from

    s1a3 @ 14 May 2012 11:46 AM
    How is this different from flipping coins problem? My solution was accepted ther but times out here. Any clue?

    @admin what is the actual

    sr_k @ 15 May 2012 04:43 PM
    @admin what is the actual time limit?...solutions with time of more than 2s can be seen as accepted....

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