CORTSENT - Editorial

editorial
, ,
21

can anyone tell me what is wrong with this?

#include
#include
using namespace std;

void abc(int k)
{
int c=0;
while(k–)
{
string s;
cin>>s;
int q=0,r=0;
for(int i=0;i<s.length();i++)
{
if(int(s[i])>=97 && int(s[i])<=109)
q++;
else if(int(s[i])>=78 && int(s[i])<=90)
r++;
}
if(q==s.length() || r==s.length())
c++;
}
if(c==k)
cout<<“YES”<<endl;
else
cout<<“NO”<<endl;
}

int main() {
// your code goes here
long long int t;
cin>>t;
while(t–)
{
int k;
cin>>k;
abc(k);
}
return 0;
}

22

Solution: 47069486 | CodeChef
Can anyone help me with this? I have tried all possible test cases which I can get.

23

No need to check all words just put a condition that will break out of the loop in case any condition hits wrong.

24

even if you find a wrong word, you should take all the inputs of the given test case ( so do not break the loop , instead take all the inputs and then break), otherwise the program will start reading input from where it ended in previous case,
eg
3
2 A a
4 A a a N
3 a b c
expected output :
no
no
yes
but the program will give output
no
yes
yes

(to realize this , you need to dry run on pen-paper after changing every value to their respective ASCII values, and when you break the loop, next time start another just after the point you broke )

2 Likes
27

@anon64872407 I have not looked very carefully, but maybe because at line no 17 you have run the loop till ‘n’, while the question says till ‘m’

29

thanks bro, You are right and now it’s working properly

30

your are right bro now it’s working properly

31

ya i got it now thank you.

32

https://www.codechef.com/viewsolution/47134599
please tell me why my solution is wrong…!!
please help

33

Bro if i break it,then its just taking the value of k to be 0. I m not able to understand that why break is creating a problem even after a dry run. please help

34

Hi, Can anyone help me in identifying problem with my solution here:- CodeChef: Practical coding for everyone.

I ran the solution against the sample input and some other inputs, but it returned correct results whereas during submission. I am getting WA error.

35

Can somebody help me with my code I am getting the wrong answer for this testcase:

3
1 aN
2 ab NO
3 A N D

Expected output:

NO
YES
NO

My Output:

NO
NO
YES

Code:

#include<bits/stdc++.h>

using namespace std;

int main(){

int t;
cin>>t;

while(t--){

	int k;
	cin>>k;
	bool ans=true;

	string s;

	for(int i=0;i<k;i++){
		getline(cin,s);

		if(ans){
		bool word1=false,word2=false;
		for(auto c:s){	
		
		if(c>='a' && c<='m'){

			word1=true;

		}

		if(c>='N' && c<='Z'){
			word2=true;				
		}

		else{
			ans=false;
			break;
		}			
		
		}
		if(word1 && word2){
			ans=false;
			break;
		}
	}
	}
	
	if(ans){
		cout<<"YES"<<endl;
	}
	else{
		cout<<"NO"<<endl;
	}

}
return 0;
}

I tried to figure it out but unable to catch it where I am getting wrong for the second testcase.

36

I do not understand what is wrong?

https://www.codechef.com/viewsolution/47305706