Question

In C programming language how do you find if all the character on a single line in a 2 dimensional array are the same?

The program should read line by line to check if all the characters on a line are the same. For this program we want to see if the * character ever shows up on a line where it is the only character on the line. as seen below.

so lets say we have a array with the following data:

Note(this is a 5x7 two dimensional array)

D C D D * D C

D C C C D * *

* * * * * * *

D C C D * D *

* * * * * * *

So i want to return the amount of lines that have the * in every position in that row. So in this array 2 lines have all the same characters which is a * so it should print "The amount of lines where the * character is the only character that appears is 2"

Answer 1

Ans

code:-

#include<stdio.h>

int main(){

int ans=0,j=0;

int r=5,c=7;//size of matrix

char a[5][7]={{'D','C','D','D','*','D','C'},{'D','C','C','C','D','*','*'},{'*','*','*','*','*','*','*'},{'D','C','C','D','*','D','*'},{'*','*','*','*','*','*','*'}};

//for each row

for(int i=0;i<r;i++){j=0;

for( j=0;j<c;j++){//for each col

if(a[i][j]!='*'){//if no *,next row

break;

}

}

if(j==c){//if all *

ans++;

}

}//print the result

printf("The amount of line where the * character is the only character is %d",ans);

}

If any doubt ask in the comments.