답안 #19122

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
19122	2016-02-18T16:15:14 Z	eaststar	Be Two Bees (OJUZ10_b2b)	C++14	11 / 100	61 ms	2644 KB

b2b

#include <stdio.h>
int n,ai,aj;
long long h[100010],t[100010],H;
int f(double m){
    int i,mi,mj;
    double s,m1=0,m2=0;
    for(i=1;i<=n;++i){
        s=h[i]+m/t[i];
        if(m1<s)m2=m1,mj=mi,m1=s,mi=i;
        else if(m2<s)m2=s,mj=i;
    }
    if(m1+m2>=H)ai=mi,aj=mj;
    return m1+m2>=H;
}
int main(){
    int i;
    scanf("%d",&n);
    for(i=1;i<=n;++i)scanf("%lld",h+i),H+=h[i];
    for(i=1;i<=n;++i)scanf("%lld",t+i);
    double l=0,r=1e10,m;
    while((r-l)/r>1e-8){
        m=(l+r)/2;
        if(f(m))r=(H-h[ai]-h[aj])/(1.0/t[ai]+1.0/t[aj]);
        else l=m;
    }
    if(ai>aj)ai^=aj^=ai^=aj;
    printf("%d %d",ai,aj);
    return 0;
}

Subtask #1

11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2644 KB	Output is correct
2	Correct	0 ms	2644 KB	Output is correct
3	Correct	0 ms	2644 KB	Output is correct
4	Correct	0 ms	2644 KB	Output is correct
5	Correct	0 ms	2644 KB	Output is correct
6	Correct	0 ms	2644 KB	Output is correct
7	Correct	0 ms	2644 KB	Output is correct

Subtask #2

0.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	0 ms	2644 KB	Output is correct
3	Correct	0 ms	2644 KB	Output is correct
4	Correct	0 ms	2644 KB	Output is correct
5	Incorrect	0 ms	2644 KB	Output isn't correct
6	Correct	0 ms	2644 KB	Output is correct
7	Incorrect	0 ms	2644 KB	Output isn't correct
8	Correct	0 ms	2644 KB	Output is correct
9	Correct	0 ms	2644 KB	Output is correct

Subtask #3

0.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	28 ms	2644 KB	Output is correct
2	Incorrect	47 ms	2644 KB	Output isn't correct
3	Correct	55 ms	2644 KB	Output is correct
4	Correct	59 ms	2644 KB	Output is correct
5	Correct	37 ms	2644 KB	Output is correct
6	Correct	20 ms	2644 KB	Output is correct
7	Incorrect	50 ms	2644 KB	Output isn't correct
8	Correct	59 ms	2644 KB	Output is correct
9	Incorrect	50 ms	2644 KB	Output isn't correct
10	Correct	39 ms	2644 KB	Output is correct
11	Incorrect	28 ms	2644 KB	Output isn't correct
12	Incorrect	53 ms	2644 KB	Output isn't correct

Subtask #4

0.0 / 39.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	56 ms	2644 KB	Output isn't correct
2	Correct	52 ms	2644 KB	Output is correct
3	Correct	61 ms	2644 KB	Output is correct
4	Incorrect	19 ms	2644 KB	Output isn't correct
5	Correct	60 ms	2644 KB	Output is correct
6	Incorrect	53 ms	2644 KB	Output isn't correct
7	Incorrect	61 ms	2644 KB	Output isn't correct
8	Incorrect	56 ms	2644 KB	Output isn't correct
9	Incorrect	42 ms	2644 KB	Output isn't correct
10	Correct	48 ms	2644 KB	Output is correct
11	Incorrect	56 ms	2644 KB	Output isn't correct
12	Correct	41 ms	2644 KB	Output is correct
13	Correct	57 ms	2644 KB	Output is correct
14	Incorrect	61 ms	2644 KB	Output isn't correct
15	Incorrect	57 ms	2644 KB	Output isn't correct
16	Correct	30 ms	2644 KB	Output is correct
17	Incorrect	55 ms	2644 KB	Output isn't correct