Submission #342058

#TimeUsernameProblemLanguageResultExecution timeMemory
342058NurstanDuisengalievRed-blue table (IZhO19_stones)C++14
11 / 100
86 ms4972 KiB
// Nurstan Duisengaliev // не, не надо меня узнавать /*#pragma GCC target ("avx2") #pragma GCC optimize ("Ofast") #pragma GCC optimize ("unroll-loops") #pragma GCC target("avx,avx2,fma") #pragma GCC optimize("O3")*/ #include <bits/stdc++.h> //#include <ext/pb_ds/assoc_container.hpp> //#include <ext/pb_ds/tree_policy.hpp> #define ll long long #define all(x) x.begin(), x.end() #define in insert #define mp make_pair #define F first #define S second #define ppf pop_front #define pb push_back #define ppb pop_back #define pf push_front #define pii pair <int, int> #define pll pair <ll, ll> #define boost() ios_base::sync_with_stdio(0), cin.tie(0) #define sz(x) (int)x.size() using namespace std; //using namespace __gnu_pbds; //template<typename T> using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; const int N = 1005; const int mod = (int)1e9 + 7; const ll INF = (ll)1e18 + 1; int a[N][N]; void solve () { int n, m; cin >> n >> m; for (int i = 1; i <= n; i ++) { for (int j = 1; j <= m; j ++) a[i][j] = 1; } if (min (n, m) != 1) { for (int i = 1; i <= n / 2 + 1; i ++) { for (int j = 1; j <= (m - 1) / 2; j ++) { a[i][j] = 0; } } for (int i = n; i > n - (n / 2 + 1); i --) { for (int j = m; j > m - ((m - 1) / 2); j --) { a[i][j] = 0; } } cout << (m - 1) / 2 * 2 + n - (m == 2 ? 0 : (m % 2 == 0 ? 2 : 1)) << endl; for (int i = 1; i <= n; i ++) { for (int j = 1; j <= m; j ++) { cout << (a[i][j] == 1 ? '+' : '-'); } cout << endl; } } else { cout << max (n, m) << endl; if (m == 1) { for (int i = 1; i <= n; i ++) { for (int j = 1; j <= m; j ++) { cout << (a[i][j] == 1 ? '+' : '-'); } cout << endl; } } else { for (int i = 1; i <= n; i ++) { for (int j = 1; j <= m; j ++) { cout << (a[i][j] == 1 ? '-' : '+'); } cout << endl; } } } } main () { // freopen (".in", "r", stdin); // freopen (".out", "w", stdout); boost (); int TT; cin >> TT; while (TT --) { solve (); } return 0; }

Compilation message (stderr)

stones.cpp:83:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   83 | main () {
      |       ^
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