Submission #1092200

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092200		Luvidi	A Plus B (IOI23_aplusb)	C++17	0 / 100	1067 ms	348 KiB

aplusb

#include "aplusb.h"
#include <bits/stdc++.h>
using namespace std;

std::vector<int> smallest_sums(int n, std::vector<int> a, std::vector<int> b) {
	int l=0,r=2e9;
	while(l<r){
		int m=(l+r)/2;
		long long cnt=0,idx=n-1;
		for(int i=0;i<n;i++){
			while(idx>=0&&a[i]+b[idx]>m)idx--;
			cnt+=idx+1;
		}
		if(cnt>=n)r=m;
		else l=m+1;
	}
	vector<int> ans;
	for(int i=0;i<n;i++){
		for(int j=0;j<n&&a[i]+b[j]<l;j++){
			ans.push_back(a[i]+b[j]);
		}
	}
	sort(ans.begin(),ans.end());
	while(ans.size()<n)ans.push_back(l);
	return ans;
}

Compilation message (stderr)

aplusb.cpp: In function 'std::vector<int> smallest_sums(int, std::vector<int>, std::vector<int>)':
aplusb.cpp:24:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |  while(ans.size()<n)ans.push_back(l);
      |        ~~~~~~~~~~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40