結果
問題 | No.1266 7 Colors |
ユーザー |
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提出日時 | 2020-10-24 18:50:29 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 277 ms / 3,000 ms |
コード長 | 2,852 bytes |
コンパイル時間 | 2,474 ms |
コンパイル使用メモリ | 199,732 KB |
最終ジャッジ日時 | 2025-01-15 15:13:23 |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 19 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:75:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 75 | scanf("%d%d%d", &n, &m, &q); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:90:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 90 | scanf("%d%d", &a, &b); | ~~~~~^~~~~~~~~~~~~~~~ main.cpp:102:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 102 | scanf("%d%d%d", &c, &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~
ソースコード
#include <bits/stdc++.h>//#include <atcoder/all>#define For(i, a, b) for (int(i) = (int)(a); (i) < (int)(b); ++(i))#define rFor(i, a, b) for (int(i) = (int)(a)-1; (i) >= (int)(b); --(i))#define rep(i, n) For((i), 0, (n))#define rrep(i, n) rFor((i), (n), 0)#define fi first#define se secondusing namespace std;typedef long long lint;typedef unsigned long long ulint;typedef pair<int, int> pii;typedef pair<lint, lint> pll;template <class T>bool chmax(T &a, const T &b) {if (a < b) {a = b;return true;}return false;}template <class T>bool chmin(T &a, const T &b) {if (a > b) {a = b;return true;}return false;}template <class T>T div_floor(T a, T b) {if (b < 0) a *= -1, b *= -1;return a >= 0 ? a / b : (a + 1) / b - 1;}template <class T>T div_ceil(T a, T b) {if (b < 0) a *= -1, b *= -1;return a > 0 ? (a - 1) / b + 1 : a / b;}constexpr lint mod = 1000000007;constexpr lint INF = mod * mod;constexpr int MAX = 200010;typedef struct UnionFindTree {vector<int> par;UnionFindTree(int n) { par.resize(n, -1); }bool is_root(int x) { return par[x] < 0; }int find(int x) {if (is_root(x)) return x;return par[x] = find(par[x]);}int size(int x) { return -par[find(x)]; }bool unite(int x, int y) {x = find(x);y = find(y);if (x == y) return false;if (size(x) < size(y)) swap(x, y);par[x] += par[y];par[y] = x;return true;}bool same(int x, int y) { return find(x) == find(y); }} UF;int main() {int n, m, q;scanf("%d%d%d", &n, &m, &q);string s[n];rep(i, n) cin >> s[i];vector<int> G[n];UF uf(n * 7);rep(i, n) {rep(c, 7) {int nc = (c + 1) % 7;if (s[i][c] == '1' && s[i][nc] == '1') {uf.unite(i * 7 + c, i * 7 + nc);}}}rep(_, m) {int a, b;scanf("%d%d", &a, &b);--a;--b;G[a].push_back(b);G[b].push_back(a);rep(c, 7) if (s[a][c] == '1' && s[b][c] == '1') {uf.unite(a * 7 + c, b * 7 + c);}}rep(_, q) {int c, x, y;scanf("%d%d%d", &c, &x, &y);if (c == 1) {--x;--y;s[x][y] = '1';int ny = (y + 1) % 7, py = (y + 6) % 7;if (s[x][ny] == '1') {uf.unite(x * 7 + y, x * 7 + ny);}if (s[x][py] == '1') {uf.unite(x * 7 + y, x * 7 + py);}for (auto nv : G[x]) {if (s[nv][y] == '1') uf.unite(x * 7 + y, nv * 7 + y);}} else {--x;printf("%d\n", uf.size(x * 7));}}}