Submission #928572

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9285722024-02-16 16:55:57ind1vSure Bet (CEOI17_sure)C++11
60 / 100
2001 ms10220 KiB
#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
int n;
long double a[N], b[N];
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i] >> b[i];
}
long double lo = 0.0F, hi = 1e8;
for (int ite = 1; ite <= 100; ite++) {
long double mid = (lo + hi) * 0.5F;
bool f = false;
priority_queue<long double> aq, bq;
for (int i = 1; i <= n; i++) {
aq.push(a[i] - 1);
bq.push(b[i] - 1);
}
long double a = 0, b = 0;
for (int x = 0, y = 0; x <= n; x++) {
while (y + 1 <= n && a - (y + 1) >= mid) {
y++;
b += bq.top();
 
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