Submission #956443

#TimeUsernameProblemLanguageResultExecution timeMemory
956443Darren0724Red-blue table (IZhO19_stones)C++17
27 / 100
18 ms1652 KiB
#include <bits/stdc++.h> using namespace std; #define LCBorz ios_base::sync_with_stdio(false); cin.tie(0); #define int long long #define all(x) x.begin(), x.end() #define endl '\n' const int N=200005; const int INF=1e18; void solve(){ int n,m;cin>>n>>m; int flag=(n>m); if(flag)swap(n,m); vector<vector<int>> v(n,vector<int>(m)); int ans=0; if(n==1){ for(int i=0;i<m;i++){ v[0][i]=1; } ans=m; } else if(n==2){ ans=m; for(int i=0;i<m;i++){ v[0][i]=1; v[1][i]=1; } } else if(n==3){ ans=m+1; for(int i=0;i<m;i++){ v[0][i]=1; v[1][i]=1; } } else if(n==4){ ans=m+1; for(int i=0;i<m;i++){ v[0][i]=1; v[1][i]=1; v[2][i]=1; } } else if(n==5){ ans=m+2; for(int i=0;i<m;i++){ v[0][i]=1; v[1][i]=1; v[2][i]=1; } } cout<<ans<<endl; if(!flag){ for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ cout<<(v[i][j]?'-':'+'); } cout<<endl; } } else{ for(int i=0;i<m;i++){ for(int j=0;j<n;j++){ cout<<(v[j][i]?'+':'-'); } cout<<endl; } } } int32_t main() { LCBorz; int t;cin>>t; while(t--){ solve(); } return 0; }
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