CSES - Datatähti 2024 alku - Results
Submission details
Task:Säähavainnot
Sender:a256
Submission time:2023-10-30 18:52:07 +0200
Language:C++ (C++20)
Status:READY
Result:46
Feedback
groupverdictscore
#1ACCEPTED46
Test results
testverdicttimescore
#1ACCEPTED0.02 s6.13details
#2ACCEPTED0.02 s6details
#3ACCEPTED0.02 s5.88details
#4ACCEPTED0.02 s5.63details
#5ACCEPTED0.02 s5.63details
#6ACCEPTED0.02 s5.38details
#7ACCEPTED0.02 s5.75details
#8ACCEPTED0.02 s5.63details

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<12;++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][23];//,deltat=dt[i][0];
	for(int h=0;h<2;++h){
		ts+=dt[i][23];
		E[i][h]=ts;
	}
	for(int h=2;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 0.1 0.0 -0.1 ? ? ? ? ?...
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 2.6 1.8 2.3 1.7 ? ? ? ? ? ...
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 10.1 9.7 8.3 8.3 ? ? ? ? ...
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 17.2 17.0 16.4 15.4 ? ? ?...
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 -4.5 -4.6 -5.8 -5.6 ? ? ?...
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 12.6 10.1 9.0 6.9 ? ? ? ?...
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 -1.8 -2.4 -3.2 -4.2 ? ? ?...
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 15.0 14.5 14.5 13.8 ? ? ?...
Truncated