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Declaration of outer block and inner block

#include <stdio.h> int main(void) {   int count1 = 1;                            do   {     int count2 = 0;                            ++count2;     printf("\ncount1 = %d     count2 = %d", count1,count2);   }while( ++count1 <= 8 );   /* count2 no longer exists */   printf("\ncount1 = %d\n", count1);   return 0; } count1 = 1 count2 = 1 count1 = 2 count2 = 1 count1 = 3 count2 = 1 count1 = 4 count2 = 1 count1 = 5 count2 = 1 count1 = 6 count2 = 1 count1 = 7 count2 = 1 count1 = 8 count2 = 1 count1 = 9