while using two getline functions ... one of them doesn't execute... i know its crazy but !! can anyone help ? Thanx

general
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1

#include<bits/stdc++.h>
using namespace std;
void ck(string s)
{
string s1=“abcdefghijklmnopqrstuvwxyz”;
int len;
string s2=s;
int pos=0;
long int sum=0;
sort(s2.begin(),s2.end());
len=s1.length();
int i;
for(i=0;i<len;i++)
{
pos=s2.find(s1[i]);
if(pos<0)
{
sum=sum+s1[i]-96;

        }
       s2.erase(std::remove(s2.begin(), s2.end(), s1[i]), s2.end());
    }
cout<<sum<<endl;

}

int main()
{
    int n=10;
    cin>>n;

    string s,s2;

    while(n>0)
    {

        getline(cin,s2); //doesn't execute the first time :/

        getline(cin,s);
        ck(s);


        n--;
    }
    return 0;
}
2

Hey @ark_srivastav,

It’s working, I have checked. provide the test case for which it is not working.

3

Thats because the first getline takes the stray newline character left after inputting n. If you put string and n in same line , I think both will then work.

What happens is that getline takes input till it encounters a new line char. After taking n as input, the cursor is at the newline char next to it, and so it gets taken by first getline. Then the second one works as intended