Code Submission Evaluation System Login

Datatähti 2017 loppu

Start:2017-01-19 12:15:00
End:2017-01-19 17:15:00
 

Tasks | Messages | Scoreboard | Statistics


CSES - Datatähti 2017 loppu - Results
History
2017-01-19 16:19:1147
2017-01-19 16:14:530
2017-01-19 16:13:560
2017-01-19 14:36:3623
Task:Noitapeli
Sender:Kuha
Submission time:2017-01-19 16:19:11
Language:C++
Status:READY
Score:47

Feedback

groupverdictscore
#1ACCEPTED23
#2ACCEPTED24
#3RUNTIME ERROR0

Test results

testverdicttime (s)group
#1ACCEPTED0.04 / 1.001details
#2ACCEPTED0.03 / 1.001details
#3ACCEPTED0.03 / 1.001details
#4ACCEPTED0.03 / 1.001details
#5ACCEPTED0.05 / 1.001details
#6ACCEPTED0.26 / 1.002details
#7ACCEPTED0.34 / 1.002details
#8ACCEPTED0.33 / 1.002details
#9ACCEPTED0.30 / 1.002details
#10ACCEPTED0.31 / 1.002details
#11RUNTIME ERROR0.20 / 1.003details
#12RUNTIME ERROR0.21 / 1.003details
#13RUNTIME ERROR0.19 / 1.003details
#14RUNTIME ERROR0.18 / 1.003details
#15RUNTIME ERROR0.15 / 1.003details

Code

#include <bits/stdc++.h>

#define ll long long

using namespace std;

bool b[5555][5555];
vector<pair<int, int>> v;
int a[5555];

int main () {
	ll ans = 0;
	int n;
	cin>>n;
	for (int i = 1; i <= n; i++) {
		int x;
		cin>>x;
		if (!b[i][x]) {
			b[i][x] = b[x][i] = 1;
			a[i]++;
			a[x]++;
			v.push_back({i, x});
		}
		b[i][i] = 1;
	}
	for (int i = 1; i <= n; i++) {
		ans += (n - a[i] - 1) * (n - a[i] - 2) / 2;
		//cout<<i<<" "<<ans<<endl;
		for (auto p : v) {
			if (!b[i][p.first] && !b[i][p.second]) ans--;
		}
		for (int j = 1; j <= n; j++) {
			if (!b[i][j]) {
				b[i][j] = b[j][i] = 1;
				a[j]++;
				a[i]++;
			}
		}
		//cout<<i<<" "<<ans<<endl;
	}
	cout<<ans<<endl;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
100
2 1 4 3 6 5 8 7 10 9 12 11 14 ...
view   save

correct output
156800

view   save

user output
156800

view   save

Test 2

Group: 1

Verdict: ACCEPTED

input
100
2 3 4 5 6 7 8 9 10 11 12 13 14...
view   save

correct output
152000

view   save

user output
152000

view   save

Test 3

Group: 1

Verdict: ACCEPTED

input
100
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
view   save

correct output
156849

view   save

user output
156849

view   save

Test 4

Group: 1

Verdict: ACCEPTED

input
100
2 3 1 5 6 4 8 9 7 11 12 10 14 ...
view   save

correct output
151968

view   save

user output
151968

view   save

Test 5

Group: 1

Verdict: ACCEPTED

input
100
8 98 100 62 42 36 95 70 22 49 ...
view   save

correct output
152040

view   save

user output
152040

view   save

Test 6

Group: 2

Verdict: ACCEPTED

input
5000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...
view   save

correct output
20808340000

view   save

user output
20808340000

view   save

Test 7

Group: 2

Verdict: ACCEPTED

input
5000
2 3 4 5 6 7 8 9 10 11 12 13 14...
view   save

correct output
20795850000

view   save

user output
20795850000

view   save

Test 8

Group: 2

Verdict: ACCEPTED

input
5000
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
view   save

correct output
20808342499

view   save

user output
20808342499

view   save

Test 9

Group: 2

Verdict: ACCEPTED

input
5000
2 3 1 5 6 4 8 9 7 11 12 10 14 ...
view   save

correct output
20795848337

view   save

user output
20795848337

view   save

Test 10

Group: 2

Verdict: ACCEPTED

input
5000
283 2880 2565 3289 4160 936 39...
view   save

correct output
20795852465

view   save

user output
20795852465

view   save

Test 11

Group: 3

Verdict: RUNTIME ERROR

input
100000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...
view   save

correct output
166656666800000

view   save

user output
(empty)

Test 12

Group: 3

Verdict: RUNTIME ERROR

input
100000
2 3 4 5 6 7 8 9 10 11 12 13 14...
view   save

correct output
166651667000000

view   save

user output
(empty)

Test 13

Group: 3

Verdict: RUNTIME ERROR

input
100000
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
view   save

correct output
166656666849999

view   save

user output
(empty)

Test 14

Group: 3

Verdict: RUNTIME ERROR

input
100000
2 3 1 5 6 4 8 9 7 11 12 10 14 ...
view   save

correct output
166651666966668

view   save

user output
(empty)

Test 15

Group: 3

Verdict: RUNTIME ERROR

input
100000
186 62491 95379 37431 88427 93...
view   save

correct output
166651667250100

view   save

user output
(empty)