답안 #19127

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
19127	2016-02-18T16:24:05 Z	eaststar	Be Two Bees (OJUZ10_b2b)	C++14	11 / 100	68 ms	2644 KB

b2b

#include <stdio.h>
int n,ai=1,aj=2;
long long h[100010],t[100010],H;
int chk(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;
}
double f(){
    double x=H-h[ai]-h[aj],y=1.0/t[ai]+1.0/t[aj];
    return x/y;
}
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=1e9,m;
    while((r-l)/r>1e-10){
        m=(l+r)/2;
        if(chk(m))r=f();
        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	Incorrect	0 ms	2644 KB	Output isn't correct
2	Incorrect	0 ms	2644 KB	Output isn't correct
3	Correct	0 ms	2644 KB	Output is correct
4	Incorrect	0 ms	2644 KB	Output isn't 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	Incorrect	0 ms	2644 KB	Output isn't correct
9	Correct	1 ms	2644 KB	Output is correct

Subtask #3

0.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	64 ms	2644 KB	Output isn't correct
2	Incorrect	38 ms	2644 KB	Output isn't correct
3	Incorrect	61 ms	2644 KB	Output isn't correct
4	Incorrect	23 ms	2644 KB	Output isn't correct
5	Incorrect	60 ms	2644 KB	Output isn't correct
6	Incorrect	52 ms	2644 KB	Output isn't correct
7	Correct	62 ms	2644 KB	Output is correct
8	Correct	46 ms	2644 KB	Output is correct
9	Incorrect	55 ms	2644 KB	Output isn't correct
10	Correct	36 ms	2644 KB	Output is correct
11	Incorrect	18 ms	2644 KB	Output isn't correct
12	Incorrect	64 ms	2644 KB	Output isn't correct

Subtask #4

0.0 / 39.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	68 ms	2644 KB	Output isn't correct
2	Incorrect	67 ms	2644 KB	Output isn't correct
3	Correct	22 ms	2644 KB	Output is correct
4	Incorrect	46 ms	2644 KB	Output isn't correct
5	Incorrect	57 ms	2644 KB	Output isn't correct
6	Incorrect	60 ms	2644 KB	Output isn't correct
7	Correct	59 ms	2644 KB	Output is correct
8	Incorrect	59 ms	2644 KB	Output isn't correct
9	Incorrect	56 ms	2644 KB	Output isn't correct
10	Incorrect	39 ms	2644 KB	Output isn't correct
11	Incorrect	63 ms	2644 KB	Output isn't correct
12	Incorrect	62 ms	2644 KB	Output isn't correct
13	Incorrect	60 ms	2644 KB	Output isn't correct
14	Incorrect	61 ms	2644 KB	Output isn't correct
15	Incorrect	67 ms	2644 KB	Output isn't correct
16	Correct	67 ms	2644 KB	Output is correct
17	Correct	43 ms	2644 KB	Output is correct