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  1. /*
  2. Kazi Irfanul Islam Payel
  3. _AIUB_CSE_
  4. */
  5. #include<bits/stdc++.h>
  6. using namespace std;
  7. int main()
  8. {
  9.    // nums = [2,7,11,15], target = 9 -> passed
  10.    // numbers = [2,3,4], target = 6
  11.     ios_base::sync_with_stdio(false);
  12.     cin.tie(NULL);
  13.     int n;
  14.     cin>>n;
  15.     int a[n];
  16.     for(int i=1;i<=n;i++)
  17.     {
  18.         cin>>a[i];
  19.     }
  20.     //sort(a,a+n);
  21.     int target;
  22.     cin>>target;
  23.     int start = 1;
  24.     int end = n;
  25.     while(start!=end)
  26.     {
  27.         int sum = a[start] + a[end];
  28.  
  29.         if(sum == target)
  30.         {
  31.             cout<< start<< " "<<end;
  32.             break;
  33.         }
  34.         else if(sum>target)
  35.         {
  36.             end--;
  37.         }
  38.         else
  39.         {
  40.             start++;
  41.         }
  42.     }
  43.  
  44.  
  45.  
  46. }
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Success #stdin #stdout 0.01s 5548KB
comments (?)
stdin
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4
2 7 11 15
9
stdout
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Standard output is empty
https://ideone.com/dhOCEI
language:
C++ (gcc 8.3)
created:
317 days ago
visibility:
public

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