제출 #490795

#제출 시각아이디문제언어결과실행 시간메모리
490795AbdurahmonRed-blue table (IZhO19_stones)C++14
100 / 100
144 ms2244 KiB
#include<bits/stdc++.h> using namespace std; typedef long long ll; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int t; cin>>t; while(t--) { int a,b; cin>>a>>b; bool ss=0; if(a>b) { ss=1; swap(a,b); } char aa[a][b]; map<int,int>a1,b1; int e=(a-1)/2, h=b/2+1; int mxx = 0; for(int c=0;c<a;c++) { int mx=mxx, h1=h; for(int i=0;i<b;i++) { if(a1[i]<e){ if(h1!=0){ if(b-i==h1 || a1[i]<mx) aa[c][i]='+', h1--, a1[i]++, b1[c]++; else aa[c][i]='-'; } else aa[c][i]='-'; } else aa[c][i]='-'; mxx = max(mxx, a1[i]); } } int ans=0; for(int c=0; c<a; c++) if(b1[c]==h) ans++; cout << ans+b << "\n"; if(ss) { for(int c=0;c<b;c++) { for(int i=0;i<a;i++) { if(aa[i][c]=='-') cout << '+'; else cout << '-'; } cout<<"\n"; } } else { for(int c=0;c<a;c++) { for(int i=0;i<b;i++) { cout<<aa[c][i]; } cout<<"\n"; } } } }
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