제출 #469909

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
469909		Karabasan	Deda (COCI17_deda)	C++17	0 / 140	6 ms	692 KiB

deda

#include <bits/stdc++.h>
#define lll long long
using namespace std;
lll n,q;
char a;
lll b,c;
multiset<pair<lll,lll> > s;
map<pair<lll,lll>,lll > mp;

lll par(pair<lll,lll> k,pair<lll,lll> z)
{
    return ((k.first<z.first)||(k.second<z.second));

}
lll bul(pair<lll,lll> &p)
{
    auto up=lower_bound(s.begin(),s.end(),p,par);
    if(up==s.end())
    {
        cout<<"-1"<<endl;
        return 0;
    }
    cout<<(*up).first<<endl;

}
int main()
{
    scanf("%lld%lld",&n,&q);
    while(q--)
    {
        cin>>a>>b>>c;
        if(mp[{c,b}]==1)
            {
                printf("%lld\n",c);
                continue;
            }
        mp[{c,b}]=1;
        if(a=='M')
        {
            s.insert({c,-b});
        }
        else
        {
            pair<lll,lll> pa={c,-b};
            bul(pa);
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

deda.cpp: In function 'long long int bul(std::pair<long long int, long long int>&)':
deda.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type]
   25 | }
      | ^
deda.cpp: In function 'int main()':
deda.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%lld%lld",&n,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 140