finding out the locations and values of largest and second largest element in a two dimensional array

Question

write a c program which finds the locations and values of largest and second largest element in a two dimensional array.

#include<stdio.h>
int main()
{
    int row,col,i,j,max1=0,max2=0,flr,flc,slr=0,slc=0;
    printf("Enter the value of row: ");
    scanf("%d",&row);
    printf("Enter the value of column: ");
    scanf("%d",&col);
    int a[col][row];


    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
            printf("Value of %d and %d is:",i,j);
            scanf("%d",&a[i][j]);

        }
    }
    printf("The matrix is: \n");
     for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
          printf("%d\t",a[i][j]);

        }
        printf("\n");
    }

    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
         if(a[i][j]>max1)
          {
          max2=max1;
          max1=a[i][j];
          flr=i;
          flc=j;
          }

           if(a[i][j]>max2&&a[i][j]<max2)
          {
              max2=a[i][j];
              slr=i;
              slc=j;
          }
        }
    }
    printf("Largest number of this  matrix is:%d ; Location is a[%d][%d]\n",max1,flr+1,flc+1);
    printf("Second Largest number of this  matrix is:%d ; Location is a[%d][%d]\n",max2,slr+1,slc+1);



}

I find out the largest value and its location. I also find out the second largest value .I try but I can't find out the location of second largest value. plz help me to find where I did wrong.