Task: | Pyramidi |
Sender: | kluopaja |
Submission time: | 2020-11-28 00:26:43 +0200 |
Language: | C++ (C++17) |
Status: | READY |
Result: | 100 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 17 |
#2 | ACCEPTED | 83 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 0.01 s | 1, 2 | details |
#2 | ACCEPTED | 0.01 s | 1, 2 | details |
#3 | ACCEPTED | 0.01 s | 1, 2 | details |
#4 | ACCEPTED | 0.01 s | 1, 2 | details |
#5 | ACCEPTED | 0.01 s | 1, 2 | details |
#6 | ACCEPTED | 0.01 s | 1, 2 | details |
#7 | ACCEPTED | 0.01 s | 1, 2 | details |
#8 | ACCEPTED | 0.01 s | 1, 2 | details |
#9 | ACCEPTED | 0.01 s | 1, 2 | details |
#10 | ACCEPTED | 0.01 s | 1, 2 | details |
#11 | ACCEPTED | 0.01 s | 1, 2 | details |
#12 | ACCEPTED | 0.01 s | 1, 2 | details |
#13 | ACCEPTED | 0.01 s | 1, 2 | details |
#14 | ACCEPTED | 0.01 s | 1, 2 | details |
#15 | ACCEPTED | 0.01 s | 1, 2 | details |
#16 | ACCEPTED | 0.09 s | 2 | details |
#17 | ACCEPTED | 0.09 s | 2 | details |
#18 | ACCEPTED | 0.09 s | 2 | details |
#19 | ACCEPTED | 0.09 s | 2 | details |
#20 | ACCEPTED | 0.09 s | 2 | details |
Code
#include <iostream> #include <vector> #include <map> using namespace std; using ll = long long; constexpr ll MOD = 1e9+7; constexpr ll N_MAX = 2e5+100; ll fact_2_exps[N_MAX]; ll nCk_mod2(int n, int k) { return (fact_2_exps[n] - fact_2_exps[k] - fact_2_exps[n-k] == 0); } int main() { fact_2_exps[0] = 0; for(int i = 1; i < N_MAX; ++i) { fact_2_exps[i] = fact_2_exps[i-1]; int tmp = i; for(; tmp%2 == 0; tmp/=2) { ++fact_2_exps[i]; } } int n; cin>>n; std::vector<int> v(n); for(int i = 0; i < n; ++i) { cin>>v[i]; } std::vector<int> mod_counts(n); for(int i = 0; i < n; ++i) { mod_counts[i] = nCk_mod2(n-1, i); } int ans = 0; for(int i = 0; i <= 30; ++i) { for(int j = 0; j < n; ++j) { if(mod_counts[j]) { ans ^= (v[j] & (1<<i)); } } } cout << ans << std::endl; }
Test details
Test 1
Group: 1, 2
Verdict: ACCEPTED
input |
---|
1 80 |
correct output |
---|
80 |
user output |
---|
80 |
Test 2
Group: 1, 2
Verdict: ACCEPTED
input |
---|
2 69 91 |
correct output |
---|
30 |
user output |
---|
30 |
Test 3
Group: 1, 2
Verdict: ACCEPTED
input |
---|
3 47 74 75 |
correct output |
---|
100 |
user output |
---|
100 |
Test 4
Group: 1, 2
Verdict: ACCEPTED
input |
---|
4 94 22 100 43 |
correct output |
---|
7 |
user output |
---|
7 |
Test 5
Group: 1, 2
Verdict: ACCEPTED
input |
---|
5 50 82 47 40 51 |
correct output |
---|
1 |
user output |
---|
1 |
Test 6
Group: 1, 2
Verdict: ACCEPTED
input |
---|
6 90 27 98 85 47 14 |
correct output |
---|
96 |
user output |
---|
96 |
Test 7
Group: 1, 2
Verdict: ACCEPTED
input |
---|
7 55 82 52 9 65 90 86 |
correct output |
---|
20 |
user output |
---|
20 |
Test 8
Group: 1, 2
Verdict: ACCEPTED
input |
---|
8 45 52 52 95 40 85 3 46 |
correct output |
---|
34 |
user output |
---|
34 |
Test 9
Group: 1, 2
Verdict: ACCEPTED
input |
---|
9 77 16 59 32 22 41 87 89 78 |
correct output |
---|
3 |
user output |
---|
3 |
Test 10
Group: 1, 2
Verdict: ACCEPTED
input |
---|
10 59 78 34 26 71 9 82 68 80 74 |
correct output |
---|
111 |
user output |
---|
111 |
Test 11
Group: 1, 2
Verdict: ACCEPTED
input |
---|
100 100 6 10 53 84 80 7 87 3 82 26... |
correct output |
---|
91 |
user output |
---|
91 |
Test 12
Group: 1, 2
Verdict: ACCEPTED
input |
---|
100 25 18 62 51 79 55 71 33 21 29 ... |
correct output |
---|
58 |
user output |
---|
58 |
Test 13
Group: 1, 2
Verdict: ACCEPTED
input |
---|
100 3 20 19 60 11 84 94 79 63 59 9... |
correct output |
---|
124 |
user output |
---|
124 |
Test 14
Group: 1, 2
Verdict: ACCEPTED
input |
---|
100 99 86 42 2 97 78 8 12 98 7 98 ... |
correct output |
---|
49 |
user output |
---|
49 |
Test 15
Group: 1, 2
Verdict: ACCEPTED
input |
---|
100 19 19 14 30 80 53 21 18 26 85 ... |
correct output |
---|
42 |
user output |
---|
42 |
Test 16
Group: 2
Verdict: ACCEPTED
input |
---|
200000 852837035 608724072 368935143 ... |
correct output |
---|
680579671 |
user output |
---|
680579671 |
Test 17
Group: 2
Verdict: ACCEPTED
input |
---|
200000 255817977 550740070 115276527 ... |
correct output |
---|
177586289 |
user output |
---|
177586289 |
Test 18
Group: 2
Verdict: ACCEPTED
input |
---|
200000 30889540 9467827 526159961 367... |
correct output |
---|
439343644 |
user output |
---|
439343644 |
Test 19
Group: 2
Verdict: ACCEPTED
input |
---|
200000 421000302 598694653 199802169 ... |
correct output |
---|
184880259 |
user output |
---|
184880259 |
Test 20
Group: 2
Verdict: ACCEPTED
input |
---|
200000 578873143 289492857 855880936 ... |
correct output |
---|
937457144 |
user output |
---|
937457144 |