제출 #373096

#제출 시각아이디문제언어결과실행 시간메모리
373096mariowongSure Bet (CEOI17_sure)C++14
100 / 100
121 ms5356 KiB
#include <bits/stdc++.h> using namespace std; int n,pt1,pt2; long double sum1,sum2,a[100005],b[100005],ans; int main(){ ios::sync_with_stdio(false); cin >> n; for (int i=1;i<=n;i++){ cin >> a[i] >> b[i]; } sort(a+1,a+1+n); sort(b+1,b+1+n); reverse(a+1,a+1+n); reverse(b+1,b+1+n); while (pt1 < n || pt2 < n){ if (pt2 == n || (pt1 < n && sum1 < sum2)){ pt1++; sum1+=a[pt1]; } else { pt2++; sum2+=b[pt2]; } ans=max(ans,min(sum1,sum2)-pt1-pt2); } cout << fixed << setprecision(4) << ans << "\n"; return 0; }
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