TheAlgorithms-C-Plus-Plus/spiral_print.cpp

#include<iostream>
using namespace std;

void genArray(int a[][10],int r,int c){

    int value=1;
    for(int i=0;i<r;i++){
        for(int j=0;j<c;j++){
            a[i][j] = value;
            cout<<a[i][j]<<" ";
            value++;
        }
        cout<<endl;
    }
}
void spiralPrint(int a[][10],int r,int c){

    int startRow=0,endRow=r-1;
    int startCol =0, endCol = c-1;
    int cnt=0;

    while(startRow<=endRow && startCol<=endCol){

        ///Print start row
        for(int i=startCol;i<=endCol;i++,cnt++){
            cout<<a[startRow][i]<<" ";
        }
        startRow++;

        ///Print the end col
        for(int i=startRow;i<=endRow;i++,cnt++){
            cout<<a[i][endCol]<<" ";
        }
        endCol--;

        ///Print the end row
        if(cnt==r*c){
            break;
        }

        for(int i=endCol;i>=startCol;i--,cnt++){
            cout<<a[endRow][i]<<" ";
        }
        endRow--;

        ///Print the start Col
        if(cnt==r*c){
            break;
        }
        for(int i=endRow;i>=startRow;i--,cnt++){
            cout<<a[i][startCol]<<" ";
        }
        startCol++;
    }
}

int main()
{
    int a[10][10];

    int r,c;
    cin>>r>>c;
    genArray(a,r,c);
    spiralPrint(a,r,c);


return 0;
}