QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#471200 | #8022. Walker | lonlyness | WA | 22ms | 4020kb | C++23 | 1.7kb | 2024-07-10 19:13:16 | 2024-07-10 19:13:17 |
Judging History
answer
#include<iostream>
#include<algorithm>
#include<cstring>
#include<queue>
#include<vector>
#include<set>
#include<map>
#include<cmath>
using namespace std;
#define int long long
#define endl "\n"
const int N = 2e5+10;
const double esp=1e-8;
typedef pair<int,int> PII;
double n,q1,v1,q2,v2;
bool check(double mid)
{
bool flag1=1,flag2=1;
double x2= v2*mid;
double cnt2=0;
double cnt1=0;
if(x2<n-q2)flag2=0;
else {
cnt2=max((double)(x2+q2-n)/2.0,(double)(x2-(n-q2)*2.0));
}
double x1=v1*mid;
if(x1<q1)flag1=0;
else {
cnt1=max((double)(x1-q1)/2.0,(double)x1-q1*2);
}
if(!flag1)
{
if(!flag2)return false;
else {
if(cnt2>=q2)return true;
else return false;
}
}
else if(!flag2){
if(!flag1)return false;
else {
if(cnt1>=n-q1)return true;
else return false;
}
}
else {
if(cnt1+cnt2>=q2-q1)return true;
else return false;
}
}
void solve()
{
cin>>n>>q1>>v1>>q2>>v2;
// cout<<n<<' '<<q1<<' '<<v1<<' '<<q2<<' '<<v2<<endl;
if(q1>q2){
swap(q1,q2);
swap(v1,v2);
}
double l = 0,r= 1e7+10;
int cnt = 0;
// check(5002000.2);
while(r-l>esp)
{
// cnt++;
// if(cnt>100)break;
double mid = (double)(r+l)/2;
if(check(mid))r= mid;
else l = mid;
// printf("%.8f %.8f %.8f\n",r,l,mid);
}
printf("%.8f\n",l);
}
signed main()
{
// ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0);
int t=1;
cin>>t;
while(t--)
{
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 4020kb
input:
2 10000.0 1.0 0.001 9999.0 0.001 4306.063 4079.874 0.607 1033.423 0.847
output:
5000999.99999999 3827.83700138
result:
ok 2 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 4016kb
input:
1 10.0 1.0 10.0 9.0 0.1
output:
1.09999999
result:
ok found '1.1000000', expected '1.1000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3960kb
input:
1 10.0 8.0 10.0 9.0 0.1
output:
1.19999999
result:
ok found '1.2000000', expected '1.2000000', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3956kb
input:
1 10.0 8.0 0.1 9.0 10
output:
1.09999999
result:
ok found '1.1000000', expected '1.1000000', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
1 10.0 2.0 0.1 3.0 10
output:
1.30000000
result:
ok found '1.3000000', expected '1.3000000', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3836kb
input:
1 10.0 9.0 0.1 8.0 10.0
output:
1.19999999
result:
ok found '1.2000000', expected '1.2000000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3840kb
input:
1 10.0 4.0 0.1 6.0 0.1
output:
59.99999999
result:
ok found '60.0000000', expected '60.0000000', error '0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
1 10.0 4.5 0.1 6.0 0.1
output:
57.50000000
result:
ok found '57.5000000', expected '57.5000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3960kb
input:
1 10.0 1.0 1.0 8.0 1.0
output:
6.49999999
result:
ok found '6.5000000', expected '6.5000000', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3960kb
input:
1 10.0 3.0 2.0 7.0 1.0
output:
4.60000000
result:
ok found '4.6000000', expected '4.6000000', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3840kb
input:
1 10.0 6.0 2.0 7.0 1.0
output:
3.66666667
result:
ok found '3.6666667', expected '3.6666667', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
1 10.0 1.0 1.0 9.0 1.0
output:
5.99999999
result:
ok found '6.0000000', expected '6.0000000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3952kb
input:
1 10000.0 1.0 0.001 1.0 0.001
output:
9998999.99999999
result:
ok found '9999000.0000000', expected '9999000.0000000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
1 10.0 5.0 1.0 5.0 1.5
output:
5.00000000
result:
ok found '5.0000000', expected '5.0000000', error '0.0000000'
Test #15:
score: -100
Wrong Answer
time: 22ms
memory: 3948kb
input:
10000 4306.063 4079.874 0.607 1033.423 0.847 8967.336 8026.500 0.398 283.019 0.876 9568.147 4481.616 0.405 800.114 0.684 9867.264 6184.040 0.312 9853.164 0.641 3344.364 730.612 0.539 1305.868 0.947 9336.180 3672.113 0.773 432.686 0.312 1468.243 59.762 0.840 1438.446 0.827 1355.133 1096.314 0.373 109...
output:
3827.83700138 7999.36499214 12559.33580247 15415.54446178 2637.69851951 9931.04151753 934.49430114 4326.94906166 5754.03288987 2847.42715700 10975.32362821 2902.17910448 24531.53636363 6278.10355486 1030.00000000 10734.39564428 1005.07702888 24249.74678111 9878.00994575 22899.25925925 12409.89777777...
result:
wrong answer 4th numbers differ - expected: '15371.5507020', found: '15415.5444618', error = '0.0028620'