CSES - Datatähti 2024 alku - Results
Submission details
Task:Säähavainnot
Sender:a256
Submission time:2023-10-30 19:02:53 +0200
Language:C++ (C++20)
Status:READY
Result:28
Feedback
groupverdictscore
#1ACCEPTED27.5
Test results
testverdicttimescore
#1ACCEPTED0.02 s3.75details
#2ACCEPTED0.02 s4details
#3ACCEPTED0.02 s3.13details
#4ACCEPTED0.02 s3details
#5ACCEPTED0.02 s3.88details
#6ACCEPTED0.02 s3.25details
#7ACCEPTED0.02 s3.25details
#8ACCEPTED0.02 s3.25details

Code

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define N 10123
#define NN 2000
#define EI (-1e5)
int n;
double T[N][24],dt[N][24],E[N][12],S[12],avg[12];
map<pair<double,double>,double> virtaus[N];
double mittaus[8000][24],oikea[8000][24];
void genvirtaus(){
for(int i=0;i<n;++i){
for(int h=0;h<23;++h){
virtaus[h].insert({{T[i][h],T[i][h]-T[i][h-1]},T[i][h+1]-T[i][h]});
}
}
}
double kk(double pt,double dt,int h){
double distance=1e5,mr=0;
for(auto P:virtaus[h]){
auto p=P.first;
double dd=p.first*p.first+p.second*p.second;
if(dd<distance){
distance=dd;
mr=P.second;
}
}
return mr;
}
void luedata(){
ifstream in;
in.open("sample_data.txt");
int Nn;
in>>Nn;
for(int i=0;i<8000;++i){
for(int h=0;h<24;++h) in>>mittaus[i][h];
for(int h=0;h<12;++h) in>>oikea[i][h];
}
in.close();
}
void ennusta(int i){
for(int h=0;h<23;++h){
dt[i][h]=T[i][h+1]-T[i][h];
}
double avg=0;
for(int h=0;h<24;++h) avg+=T[i][h];
avg/=24;
double ts=T[i][22];//,deltat=dt[i][0];
int e=10;
for(int h=0;h<e;++h){
ts+=dt[i][22];
E[i][h]=ts;
}
for(int h=e;h<12;++h){
ts+=dt[i][h];
//ts+=deltat;
//deltat=kk(ts,deltat,h);
E[i][h]=ts;
//E[i][h]=(1.5*ts+0.5*T[i][h]+0.5*avg)/2.5;
//E[i][h]=avg;
S[h]+=E[i][h];
}
}
void solve(){
genvirtaus();
for(int i=0;i<n;++i){
ennusta(i);
}
}
void prosentti(){
luedata();
n=1000;
double p=0;
ofstream out;
out.open("weather_output");
for(int i=0;i<n;++i){
for(int h=0;h<24;++h){
T[i][h]=mittaus[i][h];
}
}
genvirtaus();
for(int i=0;i<n;++i){
ennusta(i);
int a=0,b=0;
for(int h=0;h<12;++h){
double d=abs(E[i][h]-oikea[i][h]);
if(d<0.75){
++a;
} else if(d>=2.05){
++b;
}
}
p+=max(0,a-b);
for(int h=0;h<24;++h) out<<mittaus[i][h]<<' ';
for(int h=0;h<12;++h) out<<oikea[i][h]<<' ';
out<<'\n';
for(int h=0;h<12;++h) out<<E[i][h]<<' ';
out<<'\n';
}
out.close();
cout<<p/(12*n)<<'\n';
}
void ratkaisu(){
cin>>n;
for(int i=0;i<n;++i){
for(int h=0;h<24;++h) cin>>T[i][h];
}
solve();
for(int i=0;i<n;++i){
int e=5;
for(int h=0;h<e;++h){
printf("%.1f ",E[i][h]);
}
for(int h=e;h<12;++h){
printf("? ");
}
}
puts("");
}
int main(){
//srand(time(NULL));
cin.tie(0)->sync_with_stdio(0);
ratkaisu();
//prosentti();
//simulaatio();
}

Test details

Test 1

Verdict: ACCEPTED

input
1000
-0.4 -0.1 -0.2 -0.3 -0.4 -0.5 ...

correct output
0.4 0.4 0.5 0.8 0.9 1.1 1.3 1....

user output
0.2 0.2 0.2 0.2 0.2 ? ? ? ? ? ...
Truncated

Test 2

Verdict: ACCEPTED

input
1000
2.9 2.9 2.9 2.1 2.6 2 2 2.2 2....

correct output
2.3 1.6 1.5 1.1 1 0.7 0.6 0.8 ...

user output
2.6 2.8 3.0 3.2 3.4 ? ? ? ? ? ...
Truncated

Test 3

Verdict: ACCEPTED

input
1000
6.6 6 6.4 6 4.6 4.6 4.2 4.3 4....

correct output
10 10.9 10.3 10.1 9.1 7.3 5.7 ...

user output
10.1 11.3 12.5 13.7 14.9 ? ? ?...
Truncated

Test 4

Verdict: ACCEPTED

input
1000
19.4 20.2 19.1 18.9 18.3 17.3 ...

correct output
18 18.2 17 17.5 17.2 16.2 12 8...

user output
17.2 17.0 16.8 16.6 16.4 ? ? ?...
Truncated

Test 5

Verdict: ACCEPTED

input
1000
-5.7 -5.8 -5.8 -5.9 -7.1 -6.9 ...

correct output
-4.2 -4.1 -4 -3.8 -3.5 -3.2 -3...

user output
-4.5 -4.3 -4.1 -3.9 -3.7 ? ? ?...
Truncated

Test 6

Verdict: ACCEPTED

input
1000
14.8 14.8 15.4 12.9 11.8 9.7 9...

correct output
11.8 11 11.6 10.8 10.4 10.4 10...

user output
12.6 12.4 12.2 12.0 11.8 ? ? ?...
Truncated

Test 7

Verdict: ACCEPTED

input
1000
0.7 1 2 1.4 0.6 -0.4 -0.9 -0.7...

correct output
-1.3 -0.5 -0.6 -1 -3.2 -7.2 -6...

user output
-1.8 -1.6 -1.4 -1.2 -1.0 ? ? ?...
Truncated

Test 8

Verdict: ACCEPTED

input
1000
15.1 15.3 14.9 14.4 14.4 13.7 ...

correct output
15.6 15.9 16 15.2 14.6 14.4 13...

user output
15.0 15.9 16.8 17.7 18.6 ? ? ?...
Truncated