제출 #991562

#제출 시각아이디문제언어결과실행 시간메모리
991562MardonbekhazratovRed-blue table (IZhO19_stones)C++17
27 / 100
63 ms1364 KiB
#include<bits/stdc++.h> using namespace std; void solve(){ int n,m; cin>>n>>m; vector<string>a; if(n>=m){ a.assign(n,string(m,'+')); vector<int>b(n,0); for(int i=0;i<m;i++){ set<pair<int,int>>s; for(int j=0;j<n;j++) s.insert({b[j],j}); for(int j=0;j<n/2+1;j++){ auto x=*s.begin(); s.erase(s.begin()); if(x.first>=(m-1)/2) break; b[x.second]++; a[x.second][i]='-'; } } } else{ a.assign(n,string(m,'-')); vector<int>b(m,0); for(int i=0;i<n;i++){ set<pair<int,int>>s; for(int j=0;j<m;j++) s.insert({b[j],j}); for(int j=0;j<m/2+1;j++){ auto x=*s.begin(); s.erase(s.begin()); if(x.first>=(n-1)/2) break; b[x.second]++; a[i][x.second]='+'; } } } cout<<max(n,m)+(min(n,m)-1)/2<<'\n'; for(int i=0;i<n;i++){ cout<<a[i]<<'\n'; } } signed main(){ int t=1; cin>>t; while(t--){ solve(); cout<<'\n'; } return 0; }
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