Submission #670224

#TimeUsernameProblemLanguageResultExecution timeMemory
670224YENGOYANRed-blue table (IZhO19_stones)C++17
69 / 100
61 ms2264 KiB
#include <iostream> #include <vector> using namespace std; int calc(auto& v) { int cnt = 0; for (int i = 0; i < v.size(); i++) { int c = 0; for (int j = 0; j < v[i].size(); j++) { if (v[i][j] == '+') c++; } if (c > v[i].size() / 2) cnt++; } for (int j = 0; j < v[0].size(); j++) { int c = 0; for (int i = 0; i < v.size(); i++) { if (v[i][j] == '-') { c++; } } if (c > v.size() / 2) cnt++; } return cnt; } void malSol(int n, int m) { //cout << "Amerikayi miacyal nahangner\n"; if (n + (m + 1) / 2 - 1 > m + (n + 1) / 2 - 1) { cout << n + (m + 1) / 2 - 1 << endl; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { if (j <= m / 2 + 1) cout << '+'; else cout << '-'; } cout << "\n"; } } else { cout << m + (n + 1) / 2 - 1 << endl; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { if (i <= n / 2 + 1) cout << '-'; else cout << '+'; } cout << "\n"; } } } int malSol1(int n, int m) { bool f = 0; if (n + (m + 1) / 2 < m + (n + 1) / 2) { f = 1; swap(n, m); } vector<vector<char>> vec(n); int cnt = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m / 2; j++) vec[i].push_back('+'); for (int j = 0; j < cnt; j++) vec[i].push_back('-'); vec[i].push_back('+'); for (int j = 0; j < (m + 1) / 2 - 1 - cnt; j++) vec[i].push_back('-'); cnt++; if (cnt == m - m / 2) cnt = 0; } int res = calc(vec); return max( res, max(n + (m + 1) / 2 - 1, m + (n + 1) / 2 - 1 )); } void printmalSol(int n, int m) { bool f = 0; if (n + (m + 1) / 2 < m + (n + 1) / 2) { f = 1; swap(n, m); } vector<vector<char>> vec(n); int cnt = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m / 2; j++) vec[i].push_back('+'); for (int j = 0; j < cnt; j++) vec[i].push_back('-'); vec[i].push_back('+'); for (int j = 0; j < (m + 1) / 2 - 1 - cnt; j++) vec[i].push_back('-'); cnt++; if (cnt == m - m / 2) cnt = 0; } int res = calc(vec); if (max(n + (m + 1) / 2 - 1, m + (n + 1) / 2 - 1) > res) { if (f) swap(n, m); malSol(n, m); return; } cout << res << endl; if (!f) { for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cout << vec[i][j]; } cout << endl; } return; } for (int j = 0; j < m; j++) { for (int i = 0; i < n; i++) { if (vec[i][j] == '+') cout << '-'; else cout << '+'; } cout << endl; } } void solve() { int n, m; cin >> n >> m; if (n == 6 && m == 6) { cout << "9\n"; cout << "++++--\n"; cout << "+++-+-\n"; cout << "+++--+\n"; cout << "++++--\n"; cout << "+++-+-\n"; cout << "+++--+\n"; return; } if (n == 6 && m > 6) { vector<string> v = {"++++--", "+++-+-", "+++--+", "++++--", "+++-+-", "+++--+"}; for(int i = 0; i < m - 6; i++){ for(int j = 0; j < 6; j++){ if(i % 2) v[j].push_back('+'); else v[j].push_back('-'); } } cout << calc(v) << endl; for(int i = 0; i < n; i++){ for(int j = 0;j < m; j++) cout << v[i][j]; cout << endl; } return; } if(m == 6 && n > 6){ vector<string> v = {"++++--", "+++-+-", "+++--+", "++++--", "+++-+-", "+++--+"}; string a(m, '+'), b(m, '-'); for(int i = 0; i < n - 6; i++){ if(i % 2) v.push_back(b); else v.push_back(a); } cout << calc(v) << endl; for(int i = 0; i <n; i++){ for(int j= 0; j < m; j++) cout << v[i][j]; cout << endl; } return; } if (min(m, n) <= 3 || (n <= 4 && m <= 4)) { malSol(n, m); return; } else if(n % 2 == 0 && m % 2 == 0 && min(m, n) > 6){ cout << n + m - 4 << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; for(int i = 2; i < n; i++){ if(i % 2){ for(int j = 0; j < m / 2 + 1; j++) cout << "+"; for(int j = m / 2 + 1; j < m; j++) cout << "-"; cout << "\n"; } else { for(int j = m / 2 + 1; j < m; j++) cout << "-"; for(int j = 0; j < m / 2 + 1; j++) cout << "+"; cout << "\n"; } } } else if(n % 2 == 0 && m % 2 && min(m, n) > 6){ cout << n + m - 4 << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; m--; for(int i = 2; i < n; i++){ if(i % 2){ for(int j = 0; j < m / 2 + 1; j++) cout << "+"; for(int j = m / 2 + 1; j < m; j++) cout << "-"; // cout << "\n"; } else{ for(int j = m / 2 + 1; j < m; j++) cout << "-"; for(int j = 0; j < m / 2 + 1; j++) cout << "+"; // cout << "\n"; } cout << "-\n"; } return; } else if(n % 2 && m % 2 == 0 && min(m, n) > 6){ cout << n + m - 4 << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; for(int i = 0; i < m; i++) cout << "-"; cout << "\n"; for(int i = 2; i < n; i++){ if(i % 2){ for(int j = 0; j < m / 2 + 1; j++) cout << "+"; for(int j = m / 2 + 1; j < m; j++) cout << "-"; cout << "\n"; } else { for(int j = m / 2 + 1; j < m; j++) cout << "-"; for(int j = 0; j < m / 2 + 1; j++) cout << "+"; cout << "\n"; } } for(int i = 0; i < m; i++) cout << "+"; cout << "\n"; return; } else{ if (n % 2) { if (malSol1(n, m) > n + m - 2 - (1 - (m % 2))) { printmalSol(n, m); return; } cout << n + m - 2 - (1 - (m % 2)) << endl; } else { if (malSol1(n, m) > m - 1 - (1 - (m % 2)) + n - 2) { printmalSol(n, m); return; } cout << m - 1 - (1 - (m % 2)) + n - 2 << endl; } vector<vector<char>> vec(n); for (int i = 0; i < m; i++) vec[0].push_back('-'); if (n % 2 == 0) for (int i = 0; i < m; i++) vec[1].push_back('-'); for (int i = 1 + (1 - (n % 2)); i < n; i++) { if (i % 2) { for (int j = 1; j <= m / 2 + 1; j++) vec[i].push_back('+'); for (int j = m / 2 + 2; j <= m; j++) vec[i].push_back('-'); } else { for (int j = m / 2 + 2; j <= m; j++) vec[i].push_back('-'); for (int j = 1; j <= m / 2 + 1; j++) vec[i].push_back('+'); } } for (int i = 0; i < vec.size(); i++) { for (int j = 0; j < vec[i].size(); j++) { cout << vec[i][j]; } cout << endl; } } } int main() { ios_base::sync_with_stdio(0); cin.tie(NULL), cout.tie(NULL); int t; cin >> t; while (t--) solve(); }

Compilation message (stderr)

stones.cpp:6:10: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
    6 | int calc(auto& v) {
      |          ^~~~
stones.cpp: In function 'int malSol1(int, int)':
stones.cpp:52:10: warning: variable 'f' set but not used [-Wunused-but-set-variable]
   52 |     bool f = 0;
      |          ^
stones.cpp: In function 'void solve()':
stones.cpp:159:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  159 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:159:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  159 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:160:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  160 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:160:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  160 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:176:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  176 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:176:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  176 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:177:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  177 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:177:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  177 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:196:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  196 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:196:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  196 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:197:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  197 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |         ^~~
stones.cpp:197:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  197 |         for(int i = 0; i < m; i++) cout << "-"; cout << "\n";
      |                                                 ^~~~
stones.cpp:210:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  210 |         for(int i = 0; i < m; i++) cout << "+"; cout << "\n";
      |         ^~~
stones.cpp:210:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  210 |         for(int i = 0; i < m; i++) cout << "+"; cout << "\n";
      |                                                 ^~~~
stones.cpp:241:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  241 |         for (int i = 0; i < vec.size(); i++) {
      |                         ~~^~~~~~~~~~~~
stones.cpp:242:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  242 |             for (int j = 0; j < vec[i].size(); j++) {
      |                             ~~^~~~~~~~~~~~~~~
stones.cpp: In instantiation of 'int calc(auto:1&) [with auto:1 = std::vector<std::vector<char> >]':
stones.cpp:67:23:   required from here
stones.cpp:8:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
stones.cpp:10:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for (int j = 0; j < v[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~
stones.cpp:13:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         if (c > v[i].size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~~~~
stones.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (int j = 0; j < v[0].size(); j++) {
      |                     ~~^~~~~~~~~~~~~
stones.cpp:17:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         for (int i = 0; i < v.size(); i++) {
      |                         ~~^~~~~~~~~~
stones.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         if (c > v.size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~
stones.cpp: In instantiation of 'int calc(auto:1&) [with auto:1 = std::vector<std::__cxx11::basic_string<char> >]':
stones.cpp:132:23:   required from here
stones.cpp:8:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
stones.cpp:10:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for (int j = 0; j < v[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~
stones.cpp:13:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         if (c > v[i].size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~~~~
stones.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (int j = 0; j < v[0].size(); j++) {
      |                     ~~^~~~~~~~~~~~~
stones.cpp:17:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         for (int i = 0; i < v.size(); i++) {
      |                         ~~^~~~~~~~~~
stones.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         if (c > v.size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~
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