can anyone see my code why it is showing segmentation fault input: 3 def de fgh
#include<bits/stdc++.h>
using namespace std;
int main()
{
vector<string> v;
int n;
cin >> n;
for (int i = 0; i < n; ++i)
{
cin >> v[i];
}
for(auto x : v)
cout << x << endl;
return 0;
}
In this line,
cin >> v[i];
you request a reference to the ith element in v, but the vector is empty. You can change the part before the loop to
vector<string> v;
int n;
cin >> n;
v.resize(n); // <= this one is required.
to setup the vector such that it contains n default-constructed elements (in this case, zeros). Then it's valid to access v[i] within the correct bounds.