제출 #670222

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
670222		YENGOYAN	Red-blue table (IZhO19_stones)	C++17	43 / 100	42 ms	1248 KiB

stones

#define _USE_MATH_DEFINES
#include <climits>
#include <bitset>
#include <deque>
#include <queue>
#include <stack>
#include <map>
#include<iostream>
#include<vector>
#include<cmath>
#include<iomanip>
#include<algorithm>
#include<set>
#include<string>

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 anotherSol(int n, int m) {
    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";
        }
    }
}

void solve() {
    int n, m; cin >> n >> m;
    int mn = m + n;
    if (n == 6 && m == 6) {
        cout << "9\n";
        cout << "++++--\n";
        cout << "+++-+-\n";
        cout << "+++--+\n";
        cout << "++++--\n";
        cout << "+++-+-\n";
        cout << "+++--+\n";
        return;
    }
    if (n == 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){
        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 (n % 2 == m % 2) {
        if (n % 2 == 0) {
            if (max(n + (m + 1) / 2 - 1, m + (n + 1) / 2 - 1) > n + m - 4)
                anotherSol(n, m);
            else {
                cout << n + m - 4 << endl;
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                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 << '-';
                    }
                    else {
                        for (int j = m / 2 + 1; j < m; j++) cout << '-';
                        for (int j = 0; j < m / 2 + 1; j++) cout << '+';
                    }
                    cout << endl;
                }
            }
        }
        else {
            if (max(n + (m + 1) / 2 - 1, m + (n + 1) / 2 - 1) > n + m - 2)
                anotherSol(n, m);
            else {
                cout << n + m - 2 << endl;
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                for (int i = 1; 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 << '-';
                    }
                    else {
                        for (int j = m / 2 + 1; j < m; j++) cout << '-';
                        for (int j = 0; j < m / 2 + 1; j++) cout << '+';
                    }
                    cout << endl;
                }
            }

        }
    }
    else {
        if (max(n + (m + 1) / 2 - 1, m + (n + 1) / 2 - 1) > n + m - 3) anotherSol(n, m);
        else {
            cout << n + m - 3 << endl;
            if (n % 2 == 0) {
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                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 << '-';
                    }
                    else {
                        for (int j = m / 2 + 1; j < m; j++) cout << '-';
                        for (int j = 0; j < m / 2 + 1; j++) cout << '+';
                    }
                    cout << endl;
                }
            }
            else {
                for (int i = 0; i < m; i++) cout << '-'; cout << endl;
                for (int i = 1; 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 << '-';
                    }
                    else {
                        for (int j = m / 2 + 1; j < m; j++) cout << '-';
                        for (int j = 0; j < m / 2 + 1; j++) cout << '+';
                    }
                    cout << endl;
                }
            }
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    int t; cin >> t; while (t--)
    solve();

}

컴파일 시 표준 에러 (stderr) 메시지

stones.cpp:18:10: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | int calc(auto& v) {
      |          ^~~~
stones.cpp: In function 'void solve()':
stones.cpp:110:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  110 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:110:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  110 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:111:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  111 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:111:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  111 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:130:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  130 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:130:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  130 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:151:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  151 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:151:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  151 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:152:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  152 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:152:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  152 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:166:17: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  166 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                 ^~~
stones.cpp:166:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  166 |                 for (int i = 0; i < m; i++) cout << '-'; cout << endl;
      |                                                          ^~~~
stones.cpp:64:9: warning: unused variable 'mn' [-Wunused-variable]
   64 |     int mn = m + n;
      |         ^~
stones.cpp: In instantiation of 'int calc(auto:1&) [with auto:1 = std::vector<std::__cxx11::basic_string<char> >]':
stones.cpp:83:23:   required from here
stones.cpp:20:23: 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]
   20 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
stones.cpp:22:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for (int j = 0; j < v[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~
stones.cpp:25:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         if (c > v[i].size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~~~~
stones.cpp:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int j = 0; j < v[0].size(); j++) {
      |                     ~~^~~~~~~~~~~~~
stones.cpp:29:27: 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]
   29 |         for (int i = 0; i < v.size(); i++) {
      |                         ~~^~~~~~~~~~
stones.cpp:34:15: 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]
   34 |         if (c > v.size() / 2) cnt++;
      |             ~~^~~~~~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 0 / 10
• Subtask 3: 0 / 16
• Subtask 4: 11 / 11
• Subtask 5: 15 / 15
• Subtask 6: 0 / 31