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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. // hàm tìm số lớn thứ 1
  5. int max1N (int a[], int n) {
  6. 	int tmp=-1e9;
  7. 	for (int i=0; i<n; i++) {
  8. 		if (a[i]>tmp) tmp= a[i];
  9. 	}
  10. 	return tmp;
  11. }
  12.  
  13. // hàm tìm số lớn thứ 2
  14. int max2N (int a[], int n, int res1) {
  15. 	int tmp=-1e9;
  16. 	for (int i=0; i<n; i++) {
  17. 		if (a[i]>tmp && a[i]<res1) tmp= a[i];
  18. 	}
  19. 	return tmp;
  20. }
  21.  
  22. int main () {
  23. 	ios_base:: sync_with_stdio(false);
  24. 	cin.tie(nullptr);
  25.  
  26. 	int t; cin >> t;
  27. 	while (t--) {
  28. 		int n; cin >> n;
  29. 		int a[n];
  30. 		for (int i=0; i<n; i++) cin >> a[i];
  31.  
  32. 		int res1= max1N (a, n);
  33. 		int res2= max2N (a, n, res1);
  34.  
  35. 		// nếu không tìm được res2 -> res2 mặc định là -1e9
  36. 		if (res2==-1e9) cout << "0" << endl;
  37. 		else cout << res2 << " " << res1 << endl;
  38. 	}
  39. }
Success #stdin #stdout 0s 5272KB
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https://ideone.com/3Msogk
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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