Submission #674324

#TimeUsernameProblemLanguageResultExecution timeMemory
674324null_aweStray Cat (JOI20_stray)C++14
15 / 100
45 ms16592 KiB
#include "Anthony.h" #include <iostream> #include <set> #include <vector> #include <queue> #include <assert.h> using namespace std; #define pii pair<int, int> vector<int> Mark(int n, int m, int a, int b, vector<int> u, vector<int> v) { vector<vector<pii>> adj(n); for (int i = 0; i < m; ++i) adj[u[i]].push_back({v[i], i}), adj[v[i]].push_back({u[i], i}); if (a == 2) { vector<int> color(m, -1), dist(n, -1), lp(n), llp(n); for (int i = 0; i < n; ++i) lp[i] = i, llp[i] = i; queue<int> q; q.push(0), dist[0] = 0; set<int> heads; while (q.size()) { int v = q.front(); q.pop(); int label = dist[v] % 2; for (const auto& [u, i] : adj[v]) { if (color[i] >= 0) { if (adj[v].size() == 2) { lp[v] = lp[u]; if (lp[u] == u) heads.insert(v); else llp[v] = llp[u]; } continue; } color[i] = label; q.push(u), dist[u] = dist[v] + 1; } } for (int i = 0; i < m; ++i) { //cout << u[i] << ' ' << v[i] << ' ' << color[i] << endl; } vector<int> pat = {1, 1, 0, 0, 1, 0}; vector<int> shifts(n); for (int p : heads) { int cur = p; while (true) { bool can = false; for (const auto& [u, i] : adj[cur]) { if (dist[u] > dist[cur] && adj[u].size() == 2) can = true, cur = u; } if (!can) break; } int v1 = dist[lp[p]] % 2, v2 = dist[cur] % 2; int dd = dist[cur] - dist[lp[p]]; int shift = 0; if (dd % 6 == 0) shift = v1 ? 0 : 2; else if (dd % 6 == 1) shift = v1 ? 1 : 3; else if (dd % 6 == 2) shift = v1 ? 4 : 3; else if (dd % 6 == 3) shift = v1 ? 0 : 3; else if (dd % 6 == 4) shift = v1 ? 0 : 5; else shift = v1 ? 0 : 5; shifts[p] = shift; } for (int v = 1; v < n; ++v) { if (adj[v].size() != 2) continue; int p = lp[v]; int shift = shifts[llp[v]]; for (const auto& [u, i] : adj[v]) { if (dist[u] > dist[v]) { color[i] = pat[(dist[v] - dist[p] + shift) % 6]; } } } for (int i = 0; i < m; ++i) { //cout << u[i] << ' ' << v[i] << ' ' << color[i] << endl; } return color; } vector<int> color(m, -1), dist(n, -1); queue<int> q; q.push(0), dist[0] = 0; while (q.size()) { int v = q.front(); q.pop(); int label = dist[v] % 3; for (const auto& [u, i] : adj[v]) { if (color[i] >= 0) continue; color[i] = label; if (dist[u] < 0) q.push(u), dist[u] = dist[v] + 1; } } for (int num : color) assert(num >= 0 && num < 3); return color; }
#include "Catherine.h" #include <iostream> #include <vector> #include <assert.h> using namespace std; int a; void Init(int _a, int _b) { a = _a; } int prv = -1; bool start = false; vector<int> seen; bool forwards() { assert(seen.size() == 5); vector<int> f1 = {0, 1, 0, 0, 1}; vector<int> f2 = {1, 0, 0, 1, 1}; vector<int> f3 = {0, 0, 1, 1, 0}; vector<int> f4 = {0, 1, 1, 0, 1}; vector<int> f5 = {1, 1, 0, 1, 0}; vector<int> f6 = {1, 0, 1, 0, 0}; return seen == f1 || seen == f2 || seen == f3 || seen == f4 || seen == f5 || seen == f6; } int Move(vector<int> y) { vector<int> copy = y; y.clear(); for (int i = 0; i < copy.size(); ++i) for (int j = 0; j < copy[i]; ++j) y.push_back(i); if (a == 2) { if (start) { if (y.size() == 1) { return prv = y[0]; } for (int i = 0; i < y.size(); ++i) { if (y[i] != prv) { return prv = y[i]; } } // Shouldn't ever happen: //cout << copy[0] << ' ' << copy[1] << endl; assert(0); return 0; } else { if (y.size() > 1) { int sum = 0; for (int num : y) sum += num; if (sum == 0 || sum == y.size()) { start = true; return -1; } if (prv == -1 && y.size() == 2) { seen.push_back(y[0]), seen.push_back(y[1]); return prv = y[1]; } if (prv == -1) { int find = sum == 1; for (int i = 0; i < y.size(); ++i) { if (y[i] == find) { start = true; return prv = y[i]; } } // Shouldn't ever happen: assert(0); return 0; } for (int i = 0; i < y.size(); ++i) { if (y[i] != prv) { start = true; return prv = y[i]; } } // Shouldn't ever happen: assert(0); return 0; } else { if (y.size() == 0) { start = true; return -1; } seen.push_back(y[0]); if (seen.size() < 5) { return prv = y[0]; } start = true; if (forwards()) { return prv = y[0]; } return -1; } // Shouldn't ever happen: assert(0); return 0; } } vector<int> count(3); for (int num : y) ++count[num]; if (max(count[0], max(count[1], count[2])) == y.size()) return y[0]; return !count[0] ? 1 : (!count[1] ? 2 : 0); }

Compilation message (stderr)

Anthony.cpp: In function 'std::vector<int> Mark(int, int, int, int, std::vector<int>, std::vector<int>)':
Anthony.cpp:22:24: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   22 |       for (const auto& [u, i] : adj[v]) {
      |                        ^
Anthony.cpp:44:26: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   44 |         for (const auto& [u, i] : adj[cur]) {
      |                          ^
Anthony.cpp:49:33: warning: unused variable 'v2' [-Wunused-variable]
   49 |       int v1 = dist[lp[p]] % 2, v2 = dist[cur] % 2;
      |                                 ^~
Anthony.cpp:64:24: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   64 |       for (const auto& [u, i] : adj[v]) {
      |                        ^
Anthony.cpp:80:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   80 |     for (const auto& [u, i] : adj[v]) {
      |                      ^

Catherine.cpp: In function 'int Move(std::vector<int>)':
Catherine.cpp:31:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for (int i = 0; i < copy.size(); ++i)
      |                   ~~^~~~~~~~~~~~~
Catherine.cpp:38:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |       for (int i = 0; i < y.size(); ++i) {
      |                       ~~^~~~~~~~~~
Catherine.cpp:51:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |         if (sum == 0 || sum == y.size()) {
      |                         ~~~~^~~~~~~~~~~
Catherine.cpp:61:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |           for (int i = 0; i < y.size(); ++i) {
      |                           ~~^~~~~~~~~~
Catherine.cpp:71:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |         for (int i = 0; i < y.size(); ++i) {
      |                         ~~^~~~~~~~~~
Catherine.cpp:102:46: warning: comparison of integer expressions of different signedness: 'const int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |   if (max(count[0], max(count[1], count[2])) == y.size()) return y[0];
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
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