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Feb 18th, 2020
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  1. #include <iostream>
  2. using namespace std;
  3. int a[101][101],n,m;
  4. int main()
  5. {
  6. int cnt=0;
  7. cin>>n>>m;
  8. for(int i=1;i<=n;i++)
  9. for(int j=1;j<=m;j++)
  10. cin>>a[i][j];
  11. for(int i=1;i<=n-1;i++)
  12. for(int j=1;j<=m;j++)
  13. {
  14. if(a[i][j]!=a[i+1][j])
  15. break;
  16. if(a[i][j]==a[i+1][j] && j==m)
  17. cnt++;
  18. }
  19. cout<<cnt;
  20. }
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