Submission #1047978

#TimeUsernameProblemLanguageResultExecution timeMemory
1047978TAhmed33Red-blue table (IZhO19_stones)C++98
0 / 100
14 ms1372 KiB
#include <bits/stdc++.h> using namespace std; void solve () { int n, m; cin >> n >> m; if (n > m) { cout << n + (m - 1) / 2 << '\n'; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { cout << (j & 1 ? "+" : "-"); } cout << '\n'; } } else { cout << m + (n - 1) / 2 << '\n'; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { cout << (i & 1 ? "-" : "+"); } cout << '\n'; } } } signed main () { ios::sync_with_stdio(0); cin.tie(0); int tc = 1; cin >> tc; while (tc--) solve(); }
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