QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #357885 | #3994. Easy Jump | ChrysanthBlossom | WA | 0ms | 4100kb | C++14 | 2.0kb | 2024-03-19 14:27:03 | 2024-03-19 14:27:03 |
Judging History
answer
#include<bits/stdc++.h>
#define ri register int
#define ll long long
#define ld long double
using namespace std;
const int maxn=1e3+7;
ld f[maxn][10][10];
int n,S,H;
int k;
int T1,T2;
ld p[maxn];
bool hv[maxn];
const ld inf=1e16;
void solve(){
for(ri i=n;i;i--){
for(ri j=1;j<H;j++){
for(ri k=0;k<=S;k++){
if(j==1){
f[i][j][k]=(1+p[i]*f[i+1][j][k]+(1-p[i])*T2)/p[i];
}
else{
f[i][j][k]=(1+p[i]*f[i+1][j][k]+(1-p[i])*f[i][j-1][k]);
}
}
}
}
cout<<fixed<<setprecision(10)<<f[1][H-1][S]<<endl;
exit(0);
}
ld g[10][10];
signed main(){
ios::sync_with_stdio(0);
cin>>n>>H>>S;
for(ri i=1;i<=n;i++){
cin>>p[i];
p[i]/=100;
}
cin>>k;
for(ri i=1;i<=k;i++){
int t;cin>>t;
hv[t]=1;
}
cin>>T1>>T2;
for(ri i=1;i<=n;i++){
for(ri j=0;j<=H;j++){
for(ri k=0;k<=S;k++){
f[i][j][k]=inf;
}
}
}
if(T1>=T2)solve();
for(ri i=n;i;i--){
if(!S||!hv[i]){
for(ri j=1;j<H;j++){
for(ri k=0;k<=S;k++){
if(j>=2){
f[i][j][k]=(1+p[i]*f[i+1][j][k]+(1-p[i])*f[i][j-1][k]);
}
else if(k>=1){
f[i][j][k]=(1+p[i]*f[i+1][j][k]+(1-p[i])*(T1+f[i][j][k-1]));
}
else{
f[i][j][k]=(1+p[i]*f[i+1][j][k]+(1-p[i])*T2)/p[i];
}
}
}
}
else{
for(ri j=1;j<H;j++){
for(ri k=1;k<H;k++){
g[j][k]=inf;
}
}
for(ri j=1;j<H;j++){
for(ri k=j;k<H;k++){
if(k==j){
g[k][j]=(1+p[i]*f[i+1][j][S]+(1-p[i])*T1)/p[i];
}
else{
g[k][j]=(1+p[i]*f[i+1][j][S]+(1-p[i])*g[k-1][j]);
}
}
}
for(ri j=1;j<H;j++){
for(ri k=1;k<=j;k++){
f[i][j][S]=min(f[i][j][S],g[j][k]);
}
}
for(ri j=H-2;j;j--){
f[i][j][S]=min(f[i][j][S],f[i][j+1][S]+T1);
}
}
}
// for(ri i=1;i<=n;i++){
// for(ri j=1;j<H;j++){
// for(ri k=0;k<=S;k++){
// cout<<f[i][j][k]<<' ';
// } cout<<endl;
// }
// cout<<"------------------------------\n";
// }
cout<<fixed<<setprecision(10)<<f[1][H-1][S];
return 0;
}
/*
1 2 0
50
0
1 2
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3776kb
input:
1 2 0 50 0 1 2
output:
4.0000000000
result:
ok found '4.0000000', expected '4.0000000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3728kb
input:
2 3 1 50 50 1 1 1 3
output:
6.0000000000
result:
ok found '6.0000000', expected '6.0000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3728kb
input:
1 6 4 75 0 64 6
output:
1.3411458333
result:
ok found '1.3411458', expected '1.3411458', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
1 5 1 61 1 1 15 43
output:
2.2082231967
result:
ok found '2.2082232', expected '2.2082232', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
10 9 3 12 65 76 33 17 20 89 16 4 63 3 2 4 8 73 21
output:
942.4148420128
result:
ok found '942.4148420', expected '942.4148420', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3956kb
input:
10 6 0 26 6 29 76 92 46 8 4 91 44 1 4 17 6
output:
401.8668629820
result:
ok found '401.8668630', expected '401.8668630', error '0.0000000'
Test #7:
score: -100
Wrong Answer
time: 0ms
memory: 4100kb
input:
100 3 5 85 59 20 75 58 42 79 95 22 15 95 81 69 73 45 42 99 93 58 8 18 34 88 14 23 37 87 16 96 17 40 58 32 26 93 9 37 15 68 49 99 73 48 79 16 27 52 4 66 53 48 55 27 56 52 66 25 30 34 11 97 20 38 30 4 78 17 98 4 23 30 71 87 94 89 71 45 92 72 24 90 24 78 48 62 82 30 30 27 55 64 66 41 72 53 97 59 38 80 ...
output:
10000000000000234.2236328125
result:
wrong answer 1st numbers differ - expected: '13395.8550625', found: '10000000000000234.0000000', error = '746499566718.1981201'