Submission #1133988

#TimeUsernameProblemLanguageResultExecution timeMemory
1133988noyancanturkRed-blue table (IZhO19_stones)C++20
11 / 100
2 ms1864 KiB
#include<bits/stdc++.h> using namespace std; void solve1(int n,int m){ if(n<m){ int k=n/2; while(k<=n-k)k++; cout<<m+n-k<<'\n'; for(int i=0;i<k;i++){ for(int j=0;j<m;j++){ cout<<'-'; }cout<<'\n'; } for(int i=k;i<n;i++){ for(int j=0;j<m;j++){ cout<<'+'; }cout<<'\n'; } }else{ int k=m/2; while(k<=m-k)k++; cout<<m+n-k<<'\n'; for(int i=0;i<n;i++){ for(int j=0;j<k;j++){ cout<<'+'; }for(int j=k;j<m;j++){ cout<<'-'; }cout<<'\n'; } } } void solve(){ int n,m; cin>>n>>m; if(min(n,m)<3){ solve1(n,m); return; } string s[n]; for(int i=0;i<n;i++)s[i]=string(m,'+'); int l=n/2; while(l<=n-l)l++; int r=m/2; while(m-r<=r)r--; for(int i=0;i<l;i++){ for(int j=0;j<r;j++){ s[i][j]='-'; } } for(int i=n-1;n-l<=i;i--){ for(int j=m-1;m-r<=j;j--){ s[i][j]='-'; } } int ans=n+m-4+(n&1)+(m&1); cout<<ans<<'\n'; for(int i=0;i<n;i++){ cout<<s[i]<<'\n'; } } int main(){ ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); int t; cin>>t; while(t--)solve(); }
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