Submission #1027356

# Submission time Handle Problem Language Result Execution time Memory
1027356 2024-07-19T04:06:28 Z vjudge1 Sure Bet (CEOI17_sure) C++17
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define taskname ""
using namespace std;
ll n,i,l,r,mid;
double a[100009],b[100009],ans=0.0,ma,ans1,k;
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
    cin>>n;
    for(i=1;i<=n;i++){
        cin>>a[i]>>b[i];
    }sort(a+1,a+n+1,greater<>());
    sort(b+1,b+n+1,greater<>());
    for(i=1;i<=n;i++)
        a[i]+=a[i-1];
    for(i=1;i<=n;i++)
        b[i]+=b[i-1];
    for(i=0;i<=n;i++){
        ans1=a[i]-i;
        l=0;r=n;ma=0.0;
        while(l<=r){
            mid=(l+r)/2;
            k=min(ans1-mid,double(b[mid])-mid-i);
            if(k>=ma){
                ma=k;
                //if(i==3&&mid==1) cout<<k<<"\n";
                if(double(b[mid])-mid-i>ans1-mid) r=mid-1;
                else if(double(b[mid])-mid-i<ans1-mid) l=mid+1;
                else break;
            }else{
                if(double(b[mid])-mid-i<ans1-mid) l=mid+1;
                else r=mid-1;
            }
        }//if(i==4) cout<<ma;
        if(ans<ma) ans=ma;
        //cout<<ans<<"\n";
        //if(ans==1.1000) cout<<i<<"\n";
    }
    printf("%.4lf",(double)ans);
	return 0;

Compilation message

sure.cpp: In function 'int main()':
sure.cpp:48:10: error: expected '}' at end of input
   48 |  return 0;
      |          ^
sure.cpp:13:12: note: to match this '{'
   13 | int main() {
      |            ^