#include<bits/stdc++.h>
using namespace std;
#define N 100005
double a[N],b[N],ans;
int main(){
int n,i,l,r,mid;
scanf("%d",&n);
for(i=1;i<=n;i++)scanf("%lf %lf",&a[i],&b[i]);
sort(a+1,a+n+1,greater<double>());
sort(b+1,b+n+1,greater<double>());
for(i=1;i<=n;i++)a[i]+=a[i-1],b[i]+=b[i-1];
for(i=1;i<=2*n;i++){
l=0,r=min(i,n);
while(l<=r){
mid=(l+r)/2;
ans=max(ans,min(a[mid],b[min(i-mid,n)])-i);
if(a[mid]>=b[min(i-mid,n)])r=mid-1;
else l=mid+1;
}
}
printf("%.4lf",ans);
return 0;
}
Compilation message
sure.cpp: In function 'int main()':
sure.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
9 | scanf("%d",&n);
| ~~~~~^~~~~~~~~
sure.cpp:10:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
10 | for(i=1;i<=n;i++)scanf("%lf %lf",&a[i],&b[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
308 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
320 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
308 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
320 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
68 ms |
3148 KB |
Output is correct |
| 18 |
Correct |
67 ms |
3100 KB |
Output is correct |
| 19 |
Correct |
73 ms |
3212 KB |
Output is correct |
| 20 |
Correct |
67 ms |
3100 KB |
Output is correct |
| 21 |
Correct |
72 ms |
3532 KB |
Output is correct |
| 22 |
Correct |
69 ms |
3144 KB |
Output is correct |
| 23 |
Correct |
67 ms |
3152 KB |
Output is correct |
| 24 |
Correct |
67 ms |
3196 KB |
Output is correct |
| 25 |
Correct |
66 ms |
3216 KB |
Output is correct |
| 26 |
Correct |
70 ms |
3472 KB |
Output is correct |
