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10/23/2022 2:02 PM
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#include <iostream>
using namespace std;
int main()
{
int a, b, n, a1, a2;
cin >> n;
a = 1;
a1 = 0;
for (int i = 0; i < n; i++)
{
a2 = a1 + a;
a = a1;
a1 = a2;
}
cout << a2;
}Editor is loading...