CSES - Datatähti Open 2017

CSES - Datatähti Open 2017 - Results

Submission details
Task:	Witch game
Sender:	abcdef6199
Submission time:	2017-01-22 09:49:04 +0200
Language:	C++
Status:	READY
Result:	47

Feedback
group	verdict	score
#1	ACCEPTED	23
#2	ACCEPTED	24
#3	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1	details
#2	ACCEPTED	0.05 s	1	details
#3	ACCEPTED	0.04 s	1	details
#4	ACCEPTED	0.04 s	1	details
#5	ACCEPTED	0.04 s	1	details
#6	ACCEPTED	0.14 s	2	details
#7	ACCEPTED	0.17 s	2	details
#8	ACCEPTED	0.14 s	2	details
#9	ACCEPTED	0.17 s	2	details
#10	ACCEPTED	0.18 s	2	details
#11	TIME LIMIT EXCEEDED	--	3	details
#12	TIME LIMIT EXCEEDED	--	3	details
#13	TIME LIMIT EXCEEDED	--	3	details
#14	TIME LIMIT EXCEEDED	--	3	details
#15	TIME LIMIT EXCEEDED	--	3	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:17:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
input/code.cpp:18:52: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; ++i) scanf("%d", &a[i]);
                                                    ^

Code

#include <bits/stdc++.h>
using namespace std;

typedef long long LL;
typedef pair<int, int> II;

const int N = (int) 1e5 + 10;
int n, a[N];
bool mark[N];

int main() {
    #ifdef LOCAL
        freopen("Data.inp", "r", stdin);
        freopen("Data.out", "w", stdout);
    #endif

    scanf("%d", &n);
    for (int i = 1; i <= n; ++i) scanf("%d", &a[i]);

    LL ans = 0;
    for (int z = 1; z <= n; ++z) {
        int c1 = 0, c2 = 0;
        for (int i = 1; i <= n; ++i) {
            mark[i] = a[z] != i && a[i] != z;
            c1 += mark[i] && i < z;
            c2 += mark[i] && i > z;
        }
        LL sum = c1 * c2;
        for (int i = 1; i <= z - 1; ++i)
            if (mark[i] && mark[a[i]] && a[i] > z) sum--;
        for (int i = z + 1; i <= n; ++i)
            if (mark[i] && mark[a[i]] && a[i] < z) sum--;
        for (int i = 1; i <= z - 1; ++i)
            if (mark[i] && mark[a[i]] && a[i] > z && a[a[i]] == i) sum++;
        ans += sum;
    }

    cout << ans;
    return 0;
}

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: TIME LIMIT EXCEEDED

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: TIME LIMIT EXCEEDED

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: TIME LIMIT EXCEEDED

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: TIME LIMIT EXCEEDED

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: TIME LIMIT EXCEEDED

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

correct output
`166651667250100` view save

user output
(empty)

Datatähti Open 2017

Witch game

Compiler report

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Tasks

Submissions (abcdef6199)