Submission #337453

#	Time	Username	Problem	Language	Result	Execution time	Memory
337453		scales	Red-blue table (IZhO19_stones)	C++17	100 / 100	85 ms	9196 KiB

stones

#include <bits/stdc++.h>
/*#ifndef LOCAL_RUN
    #pragma GCC optimize("Ofast")
    #pragma GCC optimize("unroll-loops")
    #pragma GCC optimize("fast-math")
    #pragma GCC target("avx2,tune=native")
#endif*/
////////////////////BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
using namespace std;
long long a[1000][1000];
int main()
{
        ios::sync_with_stdio(false);
        cin.tie(0);
        //freopen("","r",stdin);
        //freopen("","w",stdout);
    long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
   cin>>t;
   for(q=0;q<t;q++)
   {
       cin>>n;
       cin>>m;
       z=0;
       if(n>m)
       {
           z=1;
           swap(m,n);
       }
       kol=n*m-m*(n/2+1);
       kol=kol/(m/2+1);
       cout<<m+kol<<endl;
       for(i=0;i<n;i++)
       {
           for(j=0;j<m;j++)
           {
               a[i][j]=0;
           }
       }
       i=0;
       j=0;
       g=kol*(m/2+1);
       while(g!=0)
       {
           if(a[i][j]==0)
           {
               g--;
               a[i][j]=1;
               i++;
               j++;
               i=i%kol;
               j=j%m;
           }
           else
           {
               j++;
               j=j%m;
           }
       }
       if(z==0)
       {
           for(i=0;i<n;i++)
           {
               for(j=0;j<m;j++)
               {
                   if(a[i][j]==1)
                   {
                       cout<<'+';
                   }
                   else
                   {
                       cout<<'-';
                   }
               }
               cout<<endl;
           }
       }
       else
       {
           for(j=0;j<m;j++)
           {
               for(i=0;i<n;i++)
               {

                       if(a[i][j]==0)
                       {
                           cout<<'+';
                       }
                       else
                       {
                           cout<<'-';
                       }


               }
               cout<<endl;
           }
       }
   }
    return 0;
}

Compilation message (stderr)

stones.cpp: In function 'int main()':
stones.cpp:17:21: warning: unused variable 'mini' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                     ^~~~
stones.cpp:17:26: warning: unused variable 'x' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                          ^
stones.cpp:17:28: warning: unused variable 'y' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                            ^
stones.cpp:17:36: warning: unused variable 'l' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                    ^
stones.cpp:17:38: warning: unused variable 'r' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                      ^
stones.cpp:17:40: warning: unused variable 'k' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                        ^
stones.cpp:17:46: warning: unused variable 'x1' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                              ^~
stones.cpp:17:49: warning: unused variable 'tip' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                                 ^~~
stones.cpp:17:55: warning: unused variable 'maxi' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                                       ^~~~
stones.cpp:17:62: warning: unused variable 'y1' [-Wunused-variable]
   17 |     long long t,i,j,mini,x,y,z,q,m,l,r,k,kol,x1,tip,g,maxi,n,y1;
      |                                                              ^~

• Subtask 1: 17 / 17
• Subtask 2: 10 / 10
• Subtask 3: 16 / 16
• Subtask 4: 11 / 11
• Subtask 5: 15 / 15
• Subtask 6: 31 / 31