제출 #859628

#제출 시각아이디문제언어결과실행 시간메모리
859628AlfraganusRed-blue table (IZhO19_stones)C++17
0 / 100
34 ms1392 KiB
#include <bits/stdc++.h> using namespace std; #define endl '\n' #define ll long long #define all(a) a.begin(), a.end() #define fastio ios::sync_with_stdio(0), cin.tie(0); #define fs first #define ss second #define print(a) \ for (auto x : a) \ cout << x << ' '; \ cout << endl; #define printmp(a) \ for (auto x : a) \ cout << x.fs << ' ' << x.ss << endl; void solve(){ int n, m; cin >> n >> m; if(n <= m){ vector<vector<char>> a(n, vector<char> (m)); for(int i = 0; i < (n + 2) / 2; i ++){ for(int j = 0; j < m; j ++){ a[i][j] = '-'; } } for(int i = (n + 2) / 2; i < n; i ++){ for(int j = 0; j < m; j ++){ a[i][j] = '+'; } } int ans = 0; for(int i = 0; i < n; i ++){ int cnt = 0; for(int j = 0; j < m; j ++){ if(a[i][j] == '+'){ cnt ++; } } if(cnt > m - cnt){ ans ++; } } for (int i = 0; i < m; i++) { int cnt = 0; for (int j = 0; j < n; j++) { if (a[j][i] == '-') { cnt++; } } if (cnt > n - cnt) { ans++; } } cout << ans << endl; for(int i = 0; i < n; i ++){ for(int j = 0; j < m; j ++){ cout << a[i][j]; } cout << endl; } } else{ vector<vector<char>> a(n, vector<char>(m)); for (int i = 0; i < (n + 2) / 2; i++) { for (int j = 0; j < m; j++) { a[i][j] = '+'; } } for (int i = (n + 2) / 2; i < n; i++) { for (int j = 0; j < m; j++) { a[i][j] = '-'; } } int ans = 0; for (int i = 0; i < n; i++) { int cnt = 0; for (int j = 0; j < m; j++) { if (a[i][j] == '+') { cnt++; } } if (cnt > m - cnt) { ans++; } } for (int i = 0; i < m; i++) { int cnt = 0; for (int j = 0; j < n; j++) { if (a[j][i] == '-') { cnt++; } } if (cnt > n - cnt) { ans++; } } cout << ans << endl; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cout << a[i][j]; } cout << endl; } } } signed main() { // fastio int t = 1; cin >> t; while(t --){ solve(); cout << endl; } }
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