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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4.  
  5. int main() {
  6. // your code goes here
  7. int arr[]={10,20,30,40};
  8. int n = upper_bound(arr,arr+4,45)-arr;
  9. cout<<n<<'\n';
  10. return 0;
  11. }
Success #stdin #stdout 0s 15232KB
stdin
Standard input is empty
stdout
4