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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. const int MAXN = 2e5 + 10, MOD = 1e9 + 7;
  5. int n, fibo[MAXN];
  6.  
  7. int main() {
  8. 	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  9.  
  10. 	cin >> n;
  11. 	fibo[1] = fibo[2] = 1;
  12.  
  13. 	for (int i = 3; i <= n; i++){
  14. 		fibo[i] = fibo[i - 1] + fibo[i - 2];
  15. 		fibo[i] %= MOD;
  16. 	}
  17.  
  18. 	cout << fibo[n];
  19.  
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/5wybMF
language:
C++14 (clang 8.0)
created:
20 hours ago
visibility:
public

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