Computer Programming Contest Preparation

    1 #include <stdio.h>
    2 #include <string.h>
    3 #include <sys/types.h>
    4 #include <sys/stat.h>
    5 #include <fcntl.h>
    6 #include <stdint.h>
    7 #include <math.h>
    8 #include <stdlib.h>
    9 #include <ctype.h>
   10 
   11 #define TRUE  (1 == 1)
   12 #define FALSE (1 != 1)
   13 
   14 #define DEBUG if (FALSE)
   15 
   16 /*
   17  *  Author: Isaac Traxler
   18  *    Date: 2021-12-5
   19  * Purpose: fun
   20  * Problem: 11830 - Contract revision
   21  */
   22 
   23 /*
   24  * This template reads data until a terminating value is reached.
   25  */
   26 
   27 #define MAX_DIGITS 111
   28 
   29 int digit;
   30 char num[MAX_DIGITS];
   31 
   32 void init()
   33 {
   34     /* FUNCTION init */
   35 } /* FUNCTION init */
   36 
   37 void dump()
   38 {
   39     /* FUNCTION dump */
   40 } /* FUNCTION dump */
   41 
   42 int getInput()
   43 {
   44     /* FUNCTION getInput */
   45     int dataReadFlag;
   46     scanf(" %d %s ", &digit, num);
   47     DEBUG printf("(digit %d)  (num[%s])\n", digit, num);
   48     dataReadFlag = ! ((0 == digit) && (0 == strcmp(num, "0")));
   49     return (dataReadFlag);
   50 } /* FUNCTION getInput */
   51 
   52 void removeDigit(char x)
   53 {
   54     /* FUNCTION removeDigit */
   55     int i;
   56     int j;
   57     int slen;
   58 
   59     slen = strlen(num);
   60     for (i=0,j=0; slen>i; i++)
   61         {
   62             /* for */
   63             if (x != num[i])
   64                 {
   65                     /* keep char */
   66                     num[j] = num[i];
   67                     j++;
   68                 } /* keep char */
   69         } /* for */
   70     if (0 == j)
   71         {
   72             /* empty */
   73             num[0] = '0';
   74             j=1;
   75         } /* empty */
   76     num[j] = 0;
   77 } /* FUNCTION removeDigit */
   78 
   79 int removeLeadingZeroes()
   80 {
   81     /* FUNCTION removeLeadingZeroes */
   82     int start;
   83     int slen;
   84 
   85     start = 0;
   86     slen = strlen(num) - 1;
   87     while ((start < slen) && (num[start] == '0'))
   88         {
   89             /* while */
   90             start++;
   91         } /* while */
   92     return start;
   93 } /* FUNCTION removeLeadingZeroes */
   94 
   95 void process()
   96 {
   97     /* FUNCTION process */
   98     int start;
   99     int i;
  100     int slen;
  101 
  102     removeDigit(digit+'0');
  103     start = removeLeadingZeroes();
  104     slen = strlen(num);
  105     DEBUG printf("%d %s\n", start, num);
  106     for (i=start; slen>i; i++)
  107         {
  108             /* print each digit */
  109             printf("%c", num[i]);
  110         } /* print each digit */
  111     printf("\n");
  112 } /* FUNCTION process */
  113 
  114 int main()
  115 {
  116     /* main */
  117     int moreToDo;
  118 
  119     init();
  120     moreToDo = getInput();
  121     while (moreToDo)
  122         {
  123             /* while */
  124             process();
  125             moreToDo = getInput();
  126         } /* while */
  127 
  128     return EXIT_SUCCESS;
  129 } /* main */
  130