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mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-12-24 03:31:59 +00:00

#945. 魔法(magic)

https://sjzezoj.com/submission/69384
This commit is contained in:
Baoshuo Ren 2023-02-12 14:50:43 +08:00
parent 9ef51c1399
commit 32016ef417
Signed by: baoshuo
GPG Key ID: 00CB9680AB29F51A
99 changed files with 364 additions and 0 deletions

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#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
using std::cin;
using std::cout;
const char endl = '\n';
const int N = 1e5 + 5;
int n, r, b;
std::string s;
std::vector<std::pair<int, int>> st{{0, 0}};
std::vector<std::vector<int>> ans;
int main() {
std::ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> r >> b >> s;
s = ' ' + s;
int cnt_r = std::count(s.begin(), s.end(), 'R'),
cnt_b = std::count(s.begin(), s.end(), 'B');
if ((n % (r + b)) || (!r && cnt_r) || (!b && cnt_b) || r && b && (cnt_r % r || cnt_b % b || cnt_r / r != cnt_b / b)) {
cout << "NO" << endl;
exit(EXIT_SUCCESS);
}
cout << "YES" << endl
<< n / (r + b) << endl;
// Hack: 9 1 2 RBBBRRBBB
//
// for (int i = 1; i <= n; i++) {
// if (i % (r + b) == 0) {
// cout << i << endl;
// } else {
// cout << i << ' ';
// }
// }
for (int i = 1; i <= n; i++) {
st.emplace_back(i, st.back().second + (s[i] == 'R'));
if (st.size() > r + b && st.back().second - st[st.size() - r - b - 1].second == r) {
std::vector<int> res;
std::for_each(st.end() - r - b, st.end(), [&](std::pair<int, int> x) { res.emplace_back(x.first); });
st.erase(st.end() - r - b, st.end());
ans.emplace_back(res);
}
}
std::reverse(ans.begin(), ans.end());
for (auto e : ans) {
for (int x : e) {
cout << x << ' ';
}
cout << endl;
}
return 0;
}

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