Submission #841730

#	Time	Username	Problem	Language	Result	Execution time	Memory
841730		Muhammad_Aneeq	A Plus B (IOI23_aplusb)	C++17	100 / 100	41 ms	4900 KiB

aplusb

#include <vector>
#include <algorithm>
#include "aplusb.h"
using namespace std;
inline bool check(vector<int>a,vector<int>b,int o)
{
	int k=a.size();
	for (int i=0;i<a.size();i++)
    {
      for (int j=0;j<a.size();j++)
      {
        if (a[i]+b[j]<=o)
          k--;
      else
       break;
      	if (k==0)
      		return 1;
      }
    }	
    return 0;
}
vector<int> smallest_sums(int n,vector<int> a ,vector<int> b)
{
  long long st=-1,en=2e9+10;
  while (st+1<en)
  {
    int mid=(st+en)/2;
    if (check(a,b,mid))
      en=mid;
    else
      st=mid;  
  }
  vector<int>ans;
  int k=0;
  for (int i=0;i<n;i++)
    {
      for (int j=0;j<n;j++)
      {
        if (a[i]+b[j]<=en)
          ans.push_back(a[i]+b[j]);
      else
      	break;
      }
    }
    sort(ans.begin(), ans.end());
    ans.resize(n);
    return ans;
}

Compilation message (stderr)

aplusb.cpp: In function 'bool check(std::vector<int>, std::vector<int>, int)':
aplusb.cpp:8:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  for (int i=0;i<a.size();i++)
      |               ~^~~~~~~~~
aplusb.cpp:10:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |       for (int j=0;j<a.size();j++)
      |                    ~^~~~~~~~~
aplusb.cpp: In function 'std::vector<int> smallest_sums(int, std::vector<int>, std::vector<int>)':
aplusb.cpp:34:7: warning: unused variable 'k' [-Wunused-variable]
   34 |   int k=0;
      |       ^

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40