 # Exactly N plus 1 Values (IT101)

link to the problem : Contest Page | CodeChef
I was doing this problem with a logic that i can take 1 2 2 3 as initial value in an vector vec not taking consideration of n=1 and n=2 (i put it in if-else if cases )
then initially sum = 8 and when my for loop reaches last value i just subtract total sum to n value. I don’t know where i am getting wrong.

``````void solve()

{

int n, sum=8;

cin >> n;

vector<int> vec={1,2,2,3};

if (n == 1)

cout << "1 1" << endl;

else if (n == 2)

cout << "1 1 2" << endl;

else

{

for (int i = 4; i < n+1; i++)

{

if(i==n)

{

int ttl = pow(2, n) - sum;

vec.push_back(ttl);

break;

}

vec.push_back(i + 1);

sum+=vec[i];

}

for (auto v : vec)

{

cout << v << " ";

}

cout << endl;

}

}
``````

Please post all of your (formatted!) code or (better!) link to your submission Edit:

Assuming it’s this: Solution: 53275961 | CodeChef - it fails this testcase:

(the sum of your solutions’ output does not equal the required sum).