제출 #170532

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
170532		mdn2002	Unija (COCI17_unija)	C++14	0 / 100	64 ms	65540 KiB

unija

#include<bits/stdc++.h>
using namespace std;
const long long mod=998244353;
multiset<int>ms;
int n;
vector<int>v[10000007];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen("lemonade.in","r",stdin);
    //freopen("lemonade.out","w",stdout);
    cin>>n;
    for(int i=0;i<n;i++)
    {
        int x,y;
        cin>>x>>y;
        x/=2;
        y/=2;
        ms.insert(x);
        v[y+1].push_back(x);
    }
    long long ans=0;
    for(int i=1;i<=10000000;i++)
    {
        for(int j=0;j<v[i].size();j++)
        {
            ms.erase(ms.lower_bound(v[i][j]));
        }
        if(ms.size()==0)break;
        ans+=*--ms.end();
    }
    cout<<ans*4;
}

컴파일 시 표준 에러 (stderr) 메시지

unija.cpp: In function 'int main()':
unija.cpp:27:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<v[i].size();j++)
                     ~^~~~~~~~~~~~

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