A matrix of size R*C (R rows and C
columns) containing numbers (positive integer values) is passed as input. The
program must print the count C of numbers in a given cell which has at least
one adjacent cell (in the same row) containing a number with the same unit
digit.
Input
Format:
The first line contains R and C separated
by a space. Next R lines contains C values separated by a space.
Output
Format:
The first line contains C.
Boundary
Conditions:
1 <= R, C <= 100
Example
Input/Output 1:
Input:
4 3
20 27 67
13 74 100
37 90 97
53 75 44
Output:
2
Explanation:
The numbers are 27 67 in the first row
where both have 7 as their unit digit.
Solution:
#include <iostream>
using namespace std;
int main()
{
int
i,j,r,c,cn=0;
cin>>r>>c;
int
a[r][c];
for(i=0;i<r;i++)
for(j=0;j<c;j++)
cin>>a[i][j];
for(i=0;i<r;i++)
{
for(j=1;j<c-1;j++)
if(a[i][j]%10==a[i][j+1]%10||a[i][j]%10==a[i][j-1]%10)
cn++;
if(a[i][0]%10==a[i][1]%10) cn++;
if(a[i][c-1]%10==a[i][c-2]%10) cn++;
}
cout<<cn;
}