제출 #788524

#제출 시각아이디문제언어결과실행 시간메모리
788524mpawicka_77Exhibition (JOI19_ho_t2)C++14
100 / 100
134 ms2408 KiB
#include <bits/stdc++.h> using namespace std; const int N=1e5+3; int M[N]; pair<int,int>T[N]; int main() { int n,m; cin>>n>>m; for(int i=1;i<=n;i++)cin>>T[i].second>>T[i].first; sort(T+1,T+n+1); for(int i=1;i<=m;i++)cin>>M[i]; sort(M+1,M+m+1); int ind=n,wyn=0; for(int i=m;i>=1;i--) { while(ind>0&&T[ind].second>M[i]) { ind--; } if(ind==0)break; if(T[ind].second<=M[i]) { ind--; wyn++; } } cout<<wyn; return 0; }
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