ridwan bai

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int t,caseno=1;;
    cin>> t;
    while(t--){
        int n;
        cin>> n;
        vector <int> v[n+5]; //You can use 2D array instead of vector array
        for(int a=0;a<n;a++){
            for(int b=0;b<n;b++){
                int x;
                cin>> x;
                v[a].push_back(x);
                //taking input
                //If you use 2D array, just replace with cin>> arr[a][b]
            }
        }
        int cnt=0;
        //checking all 2x5 rectangles
        for(int a=0;a<n-1;a++){
            for(int b=0;b<n-4;b++){
                int i=a+2,j=b+5;
                vector <int> arr(12,0);
                for(int p=a;p<i;p++){
                    for(int q=b;q<j;q++){
                        int z=v[p][q];
                        arr[z]++;
                        if(arr[z]>1) goto next;
                        //Each rectangele should have each number from 1 to 10 exactly once.
                        //If any number from 1 to 10 appears more than once and check next rectangle
                        //I used goto statement to break two loops at a time.
                    }
                }
                cnt++;
                next:
                i=0;
            }
        }
        //checking all 5x2 rectangles
        for(int a=0;a<n-4;a++){
            for(int b=0;b<n-1;b++){
                int i=a+5,j=b+2;
                vector <int> arr(12,0);
                for(int p=a;p<i;p++){
                    for(int q=b;q<j;q++){
                        int z=v[p][q];
                        arr[z]++;
                        if(arr[z]>1) goto next1;
                    }
                }
                cnt++;
                next1:
                i=0;
            }
        }
        //checking all 1x10 rectangles
        for(int a=0;a<n;a++){
            for(int b=0;b<n-9;b++){
                int i=a+1,j=b+10;
                vector <int> arr(12,0);
                for(int p=a;p<i;p++){
                    for(int q=b;q<j;q++){
                        int z=v[p][q];
                        arr[z]++;
                        if(arr[z]>1) goto next2;
                    }
                }
                cnt++;
                next2:
                i=0;
            }
        }
        //checking all 10x1 rectangles
        for(int a=0;a<n-9;a++){
            for(int b=0;b<n;b++){
                int i=a+10,j=b+1;
                vector <int> arr(12,0);
                for(int p=a;p<i;p++){
                    for(int q=b;q<j;q++){
                        int z=v[p][q];
                        arr[z]++;
                        if(arr[z]>1) goto next3;
                    }
                }
                cnt++;
                next3:
                i=0;
            }
        }
        cout<< "Case " << caseno++ << ": " << cnt <<endl;
    }
    return 0;
}