fork download
copy 
  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. using namespace std;
  5. int main() {
  6.     int n,x;cin>>n>>x;
  7.     vector<pair<int,int>>v;
  8.     for(int i =0;i<n;i++){
  9.         int x;cin>>x;
  10.         v.push_back({x,i+1});
  11.     }
  12.     sort(v.begin(),v.end());
  13.     int l=0,r=n-1;
  14.     while(l<r){
  15.         if(v[l].first+v[r].first>x) r--;
  16.         else if(v[l].first+v[r].first<x) l++;
  17.         else if(v[l].first+v[r].first==x){
  18.            cout<<v[l].second<<" "<<v[r].second;
  19.             return 0;
  20.         }
  21.     }
  22.  
  23.  
  24.     cout<<"-1";
  25.     return 0;
  26. }
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
-1
https://ideone.com/QsCPba
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!