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https://git.sb/baoshuo/OI-codes.git
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3 Commits
24558c0c98
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21757eb268
Author | SHA1 | Date | |
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21757eb268 | |||
eb9b66ed48 | |||
71e84c055e |
81
Luogu/P3452/P3452.cpp
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81
Luogu/P3452/P3452.cpp
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#include <iostream>
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#include <algorithm>
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#include <queue>
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#include <set>
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#include <vector>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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const int N = 1e5 + 5;
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int n, m, cnt, ans[N];
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std::vector<int> g[N];
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std::set<int> set;
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bool vis[N];
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void bfs(int x) {
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std::queue<int> q;
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set.erase(x);
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q.push(x);
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ans[cnt]++;
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while (!q.empty()) {
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int u = q.front();
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q.pop();
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vis[u] = true;
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for (auto it = set.begin(); it != set.end();) {
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int v = *it;
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if (*std::lower_bound(g[u].begin(), g[u].end(), v) != v) {
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q.push(v);
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ans[cnt]++;
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set.erase(it++);
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} else {
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it++;
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}
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}
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}
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}
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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cin >> n >> m;
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for (int i = 1, u, v; i <= m; i++) {
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cin >> u >> v;
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g[u].push_back(v);
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g[v].push_back(u);
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}
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std::for_each(g + 1, g + n + 1, [&](auto& v) { std::sort(v.begin(), v.end()); });
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for (int i = 1; i <= n; i++) {
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set.insert(i);
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}
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for (int i = 1; i <= n; i++) {
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if (!vis[i]) {
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cnt++;
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bfs(i);
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}
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}
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std::sort(ans + 1, ans + 1 + cnt);
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cout << cnt << endl;
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for (int i = 1; i <= cnt; i++) {
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cout << ans[i] << ' ';
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}
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cout << endl;
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return 0;
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}
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51
Luogu/P4824/P4824.cpp
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Luogu/P4824/P4824.cpp
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#include <iostream>
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#include <algorithm>
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#include <cmath>
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#include <stack>
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#include <string>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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const int N = 1e6 + 5;
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const int hash = 233333;
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int cnt;
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char st[N];
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std::string s, t;
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unsigned long long p = 1, h[N], t_hash;
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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cin >> s >> t;
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int n = s.size();
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int m = t.size();
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s = ' ' + s;
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for (char c : t) {
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t_hash = t_hash * hash + c;
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p *= hash;
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}
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for (int i = 1; i <= n; i++) {
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st[++cnt] = s[i];
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h[cnt] = h[cnt - 1] * hash + s[i];
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if (cnt >= m && h[cnt] - h[cnt - m] * p == t_hash) {
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cnt -= m;
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}
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}
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for (int i = 1; i <= cnt; i++) {
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cout << st[i];
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}
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cout << endl;
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return 0;
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}
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48
S2OJ/929/929.cpp
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48
S2OJ/929/929.cpp
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#include <iostream>
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#include <string>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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const int N = 1e6 + 5;
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int t, n;
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int cnt, len[N];
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int cnt_odd, cnt_even;
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std::string s;
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long long ans;
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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cin >> t >> n >> s;
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s = ' ' + s;
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len[0] = 1;
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for (int i = 1; i <= n; i++) {
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len[s[i] == '1' ? ++cnt : cnt]++;
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}
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for (int i = 1; i <= cnt; i++) {
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if (i % 2 == 1) {
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ans += static_cast<long long>(cnt_even) * len[i];
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cnt_even += len[i - 1];
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} else {
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ans += static_cast<long long>(cnt_odd) * len[i];
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cnt_odd += len[i - 1];
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}
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}
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for (int i = 1; i <= cnt; i++) {
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if (len[i - 1] > 1 && len[i] > 1) {
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ans += static_cast<long long>(len[i - 1] - 1) * (len[i] - 1);
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}
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}
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cout << ans << endl;
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return 0;
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}
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S2OJ/929/data/puzzle7.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle7.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/929/data/puzzle7.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle7.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/929/data/puzzle8.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle8.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/929/data/puzzle8.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle8.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/929/data/puzzle9.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle9.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/929/data/puzzle9.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/929/data/puzzle9.out
(Stored with Git LFS)
Normal file
Binary file not shown.
Loading…
Reference in New Issue
Block a user