https://www.codechef.com/COOK113B/problems/PRFYIT

#1

this question is from December cook off which i have not solved till now i have thought many time how to solve it please help i am a very very noob coder question maker was 3 star on codechef when he had made this contest question and now he is 7 star but till now i haven’t solved this question please help i have recently learnnt about printing subsequences please help

#2

please help anybody …

#3

@chhavibansal can you help in this question also please

#4

@ chhavibansal can you help in this question also please

#5

did u read the editorial for the same?
or refer to the already submitted codesss

#6

Yes many times it’s hard to understand the editorial from my point of view so please

#7

Please Explain a bit in layman’s language I have understood the question but find difficulty in how to approach towards solution

#8

for the time being try watching this
i am also trying to understand from the same
if u happen to understand just ping me

@AyushKumar9032

#9

I had seen this video many times toady i understood whole answer you did nothing but said looking for it that i think gave me the courage to see it again credit goes to u also @chhavibansal

1 Like
#10

its great u understood
waise question kaffi sahi tha editorial se samjh anhi raha tha.
i`ll make the code too.
thanks for sharing the question

#11

I am seeing this video from 3 months lol now i got it basically it uses prefix sum
noo i made it myself settters solution mae ek code mae choti si problem hai please try to resolve that

this my code link https://ide.codingblocks.com/s/220237

this one is editorial https://discuss.codechef.com/t/prfyit-editorial/46620

difference dono code mae bs itna hai ki … i took input like this
char s[1001];
int main()
{
int t;
cin>>t;

    while(t--)
    {
        int N;
        
     cin>>s;
   int n=strlen(s);

//and editorial is like this
> char S[N];

int main()
{
	scanf("%d", &q);
	for (; q; q --)
	{
		scanf("%s", &S[1]);
		n = strlen(S + 1);
1 Like
#12

https://ide.codingblocks.com/s/220237 please help @Ishitagambhir @chhavibansal @rishabhmahajan546 please help anyone i hope would have understood my problem i want to solve this test case using simple cin so that next time i see a contest problem similar to this i would be able to solve

#13 
	scanf("%s", &S[1]);

this implies that he is inserting from position 1 and not 0
tabhi usne
for(int i = 1 ; i<=N ; i++)
chalaya h
try to modify the code in the same context

#14

hi @AyushKumar9032 do you still have any queries? :slight_smile:

#15

i got it thanks…

2 Likes