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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#479565 | #8566. Can We Still Qualify For Semifinals? | ucup-team3519# | WA | 478ms | 3784kb | C++23 | 2.6kb | 2024-07-15 18:52:43 | 2024-07-15 18:52:43 |
Judging History
answer
#include <bits/stdc++.h>
std::mt19937 rbg(std::chrono::steady_clock::now().time_since_epoch().count());
auto B2 = std::bernoulli_distribution{0.5};
constexpr int N = 10;
void solve() {
int k;
std::cin >> k;
std::string s;
std::cin >> s;
std::vector<std::pair<int, int>> matches;
{
std::vector<int> a(N);
std::iota(a.begin(), a.end(), 0);
auto roll = [](auto begin, auto end) {
auto x = *(end - 1);
for (auto it = end - 1; it != begin; --it) {
*it = *(it - 1);
}
*begin = x;
};
for (int i = 1; i <= 9; ++i) {
for (int j = 0; j < 5; ++j) {
matches.emplace_back(a[j], a[N - 1 - j]);
}
roll(a.begin() + 1, a.end());
}
}
std::vector<int> p(N);
for (int i = 0; i < k; ++i) {
if (s[i] == '1') {
p[matches[i].first] += 1;
} else {
p[matches[i].second] += 1;
}
}
for (int x = 0; x < N; ++x) {
for (int y = 0; y < N; ++y) {
for (int z = 0; z < N; ++z) {
auto q = p;
std::vector<std::pair<int, int>> vec;
for (int _ = k; _ < matches.size(); ++_) {
auto [a, b] = matches[_];
if (a == 0 || b == 0) {
q[0] += 1;
} else if (a != x && a != y && a != z && b != x && b != y && b != z) {
vec.emplace_back(a, b);
}
}
for (int _ = 0; _ < 500; ++_) {
std::shuffle(vec.begin(), vec.end(), rbg);
for (auto [a, b] : vec) {
if (B2(rbg)) {
std::swap(a, b);
}
if (q[a] < q[b]) {
q[a] += 1;
} else {
q[b] += 1;
}
}
if (std::none_of(q.begin(), q.end(), [&](int v) {
return v > q[0];
})) {
std::cout << "YES\n";
return;
}
}
}
}
}
std::cout << "NO\n";
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int t;
std::cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 49ms
memory: 3620kb
input:
3 3 111 25 1000010101111111111010100 35 01111011110111101111011110111101111
output:
YES YES NO
result:
ok 3 token(s): yes count is 2, no count is 1
Test #2:
score: 0
Accepted
time: 1ms
memory: 3596kb
input:
10 16 0110000001010100 17 01111000110110101 15 001100010101111 16 0010101010011100 19 0000000100010110100 16 0011101010011100 18 011110010001100000 18 000110101001100011 20 01100010000100100100 15 001000111001101
output:
YES YES YES YES YES YES YES YES YES YES
result:
ok 10 token(s): yes count is 10, no count is 0
Test #3:
score: 0
Accepted
time: 478ms
memory: 3784kb
input:
10 37 0110000001010100011101001011100110001 39 000100111101101001100101101000000000100 35 00111000100111100101011010111100100 33 010000010001110010110001101110001 30 000100010100000010010110101010 31 0000101000011010101001010000000 44 00001000000111101011010110000101100011000100 42 01111011110001001...
output:
NO NO NO NO NO NO NO NO NO NO
result:
ok 10 token(s): yes count is 0, no count is 10
Test #4:
score: -100
Wrong Answer
time: 422ms
memory: 3560kb
input:
10 23 01100000010101000111010 38 01111001100011000101011110101001101001 27 010000000001001001110001001 26 01101001110011101101000110 8 00001000 22 0110100110001110110001 9 000100010 24 000000100101101010100100 6 011000 29 01101010100101000000000000100
output:
NO NO NO NO YES YES YES YES YES NO
result:
wrong answer expected YES, found NO [1st token]