algorithme

Someone great man can help me with this algorithm .Only say me what represent z and c and why z/10. PleaseSommone Can Say me please what represent \”z\” and \”c\” en this algorithm. #include<stdio.h> int main(){int i, j = 1, l, n;int mm[50][50], x, y, z;int c = 0; label:printf(\”Enter the Order of Magic Matrix(Odd) : \”);scanf(\”%d\”, &n);printf(\”\\n\”);if (n % 2 == 0){printf(\”Enter Odd Numbers Only\\n\\n\”);goto label;} //find the middle columnl = (n + 1) / 2; //set all the elements to be used to 0for (x = 1; x <= n; x++){for (y = 1; y <= n; y++){mm[x][y] = NULL;}} for (i = 1; i <= (n * n); i++){if (mm[j][l] == NULL){mm[j][l] = i;}else{j = j + 2;l–;if (j == n + 2)j = 2;if (l == 0)l = n;if (j == 0)j = n;if (l == n + 1)l = 1;mm[j][l] = i;}j–;l++;if (j == 0)j = n;if (l == n + 1)l = 1;} for (x = 1; x <= n; x++){for (y = 1; y <= n; y++){z = mm[x][y];while (z > 0){z = z / 10;c++;}if (c == 1)printf(\” 0%d\”, mm[x][y]);elseprintf(\” %d\”, mm[x][y]);if (y % n == 0)printf(\”\\n\\n\”);c = 0;}}return 0;}