Invitation to CodeChef June Starters 2021

[daanish_adm]

We invite you to participate in CodeChef’s June Starters, this Sunday, 27th June.

Time: 4 PM - 7 PM IST.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef’s contests, you can share them here.

Joining me on the problem setting panel are:

• Setters: Daanish daanish_adm Mahajan, Smit l_returns Mandavia, Aryan aryanag_adm Agarwala

• Tester: Istvan iscsi Nagy

• Statement Verifier: Jakub xellos0 Safin

• Editorialist: Vichitr vichitr Gandas

• Contest Admin: Daanish daanish_adm Mahajan

• Head Admin: Alex um_nik Danilyuk

• Video Editorialists: Chirayu chirayu_98 Jain, Prachi prachi16121996 Agarwal, Darshan darshancool25 Lokhande, Yashodhan zappelectro Agnihotri, Shivam whitemagic Bohra, Aryan aryanag_adm Agarwala, Meet kaun_meet Singh Gambhir, Rajarshi rajarshi_basu Basu

• Mandarin Translator: Huang carolwing Ying

• Russian Translator: Fedor gomelfk Korobeinikov

• Bengali Translator: Sakib sakibabrar Abrar

• Vietnamese Translator: Team songuku95 VNOI

The video editorials of the problems will be available on our YouTube channel as soon as the contest ends. Subscribe to get notifications about our new editorials.

Hope to see you participating.

Good Luck!

[rijusougata13]

hello everyOne I have question regarding CodeChef: Practical coding for everyone this problem . here constraints are 1e5, so q can be max 1e5 and l can be 1 and r can be 1e5. so if we use n2 apporach it should get TLE. because for every q if l=1 and r=1e5 ,then in my apporach it will take n2 time .
but I got AC. Can you tell me what I am missing.
my apporach →

ll n,q;
   cin>>n>>q;
   vi<ll>arr(n,0);
   f(i,0,n)cin>>arr[i];
   while(q--){
    ll t;
    cin>>t;
    if(t==1){
        ll x,y,val;
        cin>>x>>y>>val;
        x--;
        y--;
        ll s=val*val;
        f(i,x,y+1){

            arr[i]+=(s);
            s=++val;
            s*=s;
            // printv(arr);
        }
    }
    else{
        ll y;
        cin>>y;
        y--;
        print(arr[y]);
    }
   }