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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int linear_search(vector<int> a, int k){
  5.     for(int i=0; i<a.size(); i++){
  6.         if(a[i] == k) return i;
  7.     }
  8.     return -1;
  9. }
  10.  
  11.  
  12. int main()
  13. {
  14.     int n; cin >> n;
  15.     vector<int> a(n);
  16.     for(int i=0; i<n; i++){
  17.         cin >> a[i];
  18.     }
  19.     cout << linear_search(a, 5);
  20. }
  21.  
Success #stdin #stdout 0.01s 5292KB
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stdin
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5
2 1 4 5 3
stdout
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3
https://ideone.com/9YmbUJ
language:
C++14 (gcc 8.3)
created:
13 days ago
visibility:
public

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