# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|
469134 | | ala2 | Bob (COCI14_bob) | C++14 | | 532 ms | 49548 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define ff first
#define ss second
#define int long long
using namespace std;
int a[1010][1010];
int dpr[1010][1010];
int dpc[1010][1010];
pair<int,int> dp3[1010][1010];
signed main()
{
int n;
cin>>n;
int m;
cin>>m;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
cin>>a[i][j];
}
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
dpc[i][j]=1;
dpr[i][j]=1;
dp3[i][j].ff=1;
dp3[i][j].ss=1;
}
}
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
if(i>0)
{
if(a[i][j]==a[i-1][j])
{
dpr[i][j]=dpr[i-1][j]+1;
}
}
if(j>0)
{
if(a[i][j]==a[i][j-1])
{
dpc[i][j]=dpc[i][j-1]+1;
}
}
}
}// ff for c ss for r
for(int i=0;i<n;i++)
{
dp3[i][0].ss=dpr[i][0];
}
for(int j=0;j<m;j++)
{
dp3[0][j].ff=dpc[0][j];
}
for(int i=1;i<n;i++)
{
for(int j=1;j<m;j++)
{
if(a[i][j]==a[i][j-1])
{
dp3[i][j].ff=min(dp3[i][j-1].ff+1,dpc[i][j]);
// cout<<" "<<i<<" "<<j<<" "<<dp3[i][j-1].ff+1<<" "<< dpc[i][j]<<endl;
}
if(a[i][j]==a[i-1][j])
{
dp3[i][j].ss=min(dp3[i-1][j].ss+1,dpr[i][j]);
}
}
}
int ans=0;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{ //cout<<dpr[i][j]<<" ";
for(int k=j;k>=0;k--)
{
if(a[i][k]!=a[i][k+1]&&k!=j)
break;
ans+=dpr[i][k];
}
// cout<<" :"<<ans<<" ";
}
// cout<<endl;
}
cout<<""<<ans<<endl;
}
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