#include <bits/stdc++.h>
#define int long long
#define float double
#define endl "\n"
using namespace std;
bool f(float a, float b){
return a>b;
}
float binarySearch(vector<float>arr, float l, float r, float x){
if(arr[l]>=x)
return l;
if(arr[r]<=x)
return r-1;
while (l <= r) {
float m = l + (r - l) / 2;
if(arr[m]<=x && arr[m+1]>=x)
return m;
if (arr[m+1] < x)
l = m + 1;
else
r = m - 1;
}
return -1;
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
float n;
cin>>n;
vector<float>a;
vector<float>b;
for(float i=0;i<n;i++){
float a1,b1;
cin>>a1>>b1;
a.push_back(a1);
b.push_back(b1);
}
sort(a.begin(),a.end(),f);
sort(b.begin(),b.end(),f);
vector<float>b_pref;
float s=0;
for(float i=0;i<n;i++){
s+=b[i];
b_pref.push_back(s);
}
s=0;
float score=-1;
for(float i=0;i<n;i++){
s+=a[i];
float j=binarySearch(b_pref,0,n-1,s);
float s1=min(s,b_pref[j])-i-j-2;
float s2=min(s,b_pref[j+1])-i-j-3;
score=max(score,s2);
score=max(score,s1);
}
printf("%.4lf",(float)score);
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
