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1375B codeforces solution.cpp
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1375B codeforces solution.cpp
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#include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
{
int n,m;
cin>>n>>m;
long long int arr[n][m];
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
cin>>arr[i][j];
}
}
bool x=1;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
int t=0;
if(i-1>=0) t++;
if(i+1<n) t++;
if(j-1>=0) t++;
if(j+1<m) t++;
if(arr[i][j]>t)
{
//cout<<"NO"<<endl;
x=0;
}
arr[i][j]=t;
}
}
if(x==0){
cout<<"NO"<<endl;
//return 0;
}
else{
cout<<"YES"<<endl;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
cout<<arr[i][j]<<" ";
}
cout<<endl;
}
}
}
return 0;
}