Please help me know the error in my code and why its not working for all test cases

#1

#include
using namespace std;
int main(){
int N;
cin>>N;
int no;
for(int i=1;i<=N;i++){
cin>>no;
int sum_of_digit=0;
while(no>0){
int digit= no%10;
sum_of_digit = sum_of_digit + digit;
no=no/10;
}
if(sum_of_digit%2==0 && sum_of_digit%4==0){
cout<<“Yes”<<endl;
}
else if(sum_of_digit%2==0 && sum_of_digit%4!=0){
cout<<“No”<<endl;
}
else if(sum_of_digit%2!=0 && sum_of_digit%3==0){
cout<<“Yes”<<endl;
}
else if(sum_of_digit%2!=0 && sum_of_digit%3!=0){
cout<<“No”<<endl;
}
else{
cout<<“No”<<endl;
}
}
return 0;
}

#2

please read question carefully

each car will be allowed to run on Sunday if the sum of digits which are even is divisible by 4 or sum of digits which are odd in that number is divisible by 3. However to check every car for the above criteria can’t be done by the Delhi Police.

#3

you have to consider 2 variables
oddDigtSum and evenDigitSum
now extract digits form number and add accordingly
like this


while(no>0){
    int digit=no%10;
    if(digit%2==0){
        // digit is even so add to evenDigitSum
        evenDigitSum+=digit;
    }
    else{
        // digit is odd so add to oddDigitSum
        oddDigitSum+=digit;
    }
    no=no/10;		
}

now after that you have to check the condition given in question

if(evenDigitSum%4==0||oddDigitSum%3==0){
			cout<<"Yes"<<endl;
		}
		else{
			cout<<"No"<<endl;
		}

if you have more doubts regarding this feel free to ask
i hope this helps
if yes hit a like :heart:: and don’t forgot to mark doubt as resolved :grinning:

#4

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