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  1. //Collecting the dream I threw away
  2. //Road to VOI
  3. #include<bits/stdc++.h>
  4. #define el '\n'
  5. #define ll long long
  6. #define ull unsigned long long
  7. #define fumo ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  8. #define pb push_back
  9. #define str string
  10. #define sz(v) (int)v.size()
  11. #define ldb long double
  12. #define db double
  13. #define reimu(v) v.begin(), v.end()
  14. #define ret return
  15. #define fi first
  16. #define se second
  17. #define int long long
  18. using namespace std;
  19. #pragma GCC optimize ("Ofast")
  20. #pragma GCC optimize ("unroll-loops")
  21. #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
  22. //ᗜˬᗜ
  23. const int N=2e2+7,base=37,block=280;
  24. const ll mod=1e9+7,inf=1e18;
  25. int n,m;
  26. char S[N][N],tmp[N][N];
  27.  
  28. void sol()
  29. {
  30.     cin>>n>>m;
  31.     for(int i=1;i<=n;++i) for(int j=1;j<=m;++j) cin>>S[i][j];
  32.     for(int j=1;j<=m;++j) S[0][j]='0';
  33.     for(int i=0;i<=n;++i) for(int j=1;j<=m;++j) tmp[i][j]=S[i][j];
  34.     for(int i=1;i<=n;++i)
  35.     {
  36.         int last=m+1;
  37.         for(int j=1;j<=m;++j) if(tmp[i][j]!='.' && tmp[i][j]!=tmp[i-1][j])
  38.         {
  39.             last=j;
  40.             break;
  41.         }
  42.         bool smaller=1;
  43.         if(last<=m) if(tmp[i-1][last]>tmp[i][last]) smaller=0;
  44.         //cout<<last<<el;
  45.         if(last<=m && !smaller) for(int j=last-1;j>=1;--j) if(tmp[i][j]=='.')
  46.         {
  47.             if(tmp[i-1][j]=='1') continue;
  48.             tmp[i][j]='1';
  49.             last=j;
  50.             break;
  51.         }
  52.         for(int j=last-1;j>=1;--j) if(tmp[i][j]=='.') tmp[i][j]=tmp[i-1][j];
  53.         for(int j=last+1;j<=m;++j) if(tmp[i][j]=='.') tmp[i][j]='0';
  54.         //cout<<last<<el;
  55.         //for(int j=1;j<=m;++j) cout<<tmp[i][j];cout<<el;
  56.         for(int j=1;j<=m;++j) if(tmp[i-1][j]!=tmp[i][j])
  57.         {
  58.             if(tmp[i-1][j]>tmp[i][j])
  59.             {
  60.                 cout<<-1;
  61.                 ret;
  62.             }
  63.             break;
  64.         }
  65.     }
  66.     for(int j=1;j<=m;++j) cout<<tmp[n][j];cout<<el;
  67. }
  68.  
  69. void ffopen(const str &alice)
  70. {
  71.     if(fopen((alice+".inp").c_str(), "r")){
  72.         freopen((alice+".inp").c_str(), "r", stdin);
  73.         freopen((alice+".out").c_str(), "w", stdout);
  74.     }
  75. }
  76.  
  77. signed main()
  78. {
  79.     fumo
  80.     ffopen("");
  81.     int t=1;
  82.     //cin>>t;
  83.     while(t--) sol();
  84.     ret 0;
  85. }
  86.  
Success #stdin #stdout 0s 5304KB
comments (?)
stdin 
Standard input is empty
stdout 

	

		
	 
	
				

					
			
			
			
			
			
						
			

			
			
			
		

	
		
		

			

			                        			
			

				

	
					
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language:

						
C++ (gcc 8.3)

					

					

						
created:
														
2 hours ago

					

					

						
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