제출 #1260071

#제출 시각아이디문제언어결과실행 시간메모리
1260071sarsenbai_008Infinite Race (EGOI24_infiniterace2)C++17
0 / 100
76 ms10568 KiB
#include <bits/stdc++.h> using namespace std; signed main() { int k,n; cin>>k>>n; vector <int> a(n+1); for(int i=1;i<=n;i++){ cin>>a[i]; } map <int,int> mp; int cnt=0; for(int i=1;i<=n;i++){ if(k-a[i]<0) cnt++; else mp[k-a[i]]++; if(mp[k-a[i]]>1) cnt--; } cout<<abs(cnt);; }
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