제출 #928625

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
928625		MilosMilutinovic	A Plus B (IOI23_aplusb)	C++17	100 / 100	36 ms	4568 KiB

aplusb

#include "aplusb.h"
#include<bits/stdc++.h>
 
#define pb push_back
#define fi first
#define se second
#define mp make_pair
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef long double ld;
 
template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;}
template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;}
 
ll readint(){
	ll x=0,f=1; char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}
 
vector<int> smallest_sums(int n,vector<int> a,vector<int> b){
	int l=0,r=(int)2e9,s=0;
	while(l<=r){
		int mid=l+(r-l)/2;
		int ptr=0;
		ll cnt=0;
		for(int i=n-1;i>=0;i--){
			while(ptr<n&&a[i]+b[ptr]<=mid) ptr++;
			cnt+=ptr;
		}
		if(cnt>=n) s=mid,r=mid-1; else l=mid+1;
	}
	vector<int> ret;
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(a[i]+b[j]<s) ret.pb(a[i]+b[j]);
			else break;
		}
	}
	while(ret.size()<n) ret.pb(s);
	sort(ret.begin(),ret.end());
	return ret;
}

컴파일 시 표준 에러 (stderr) 메시지

aplusb.cpp: In function 'std::vector<int> smallest_sums(int, std::vector<int>, std::vector<int>)':
aplusb.cpp:46:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   46 |  while(ret.size()<n) ret.pb(s);
      |        ~~~~~~~~~~^~

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