UVA 445-Marvelous Mazes

#include <stdio.h>#include <ctype.h>int main(){char ch;int i, count = 0;while ((ch = getchar()) != EOF) {if (isdigit(ch)) {count += ch - '0';continue;} else if (ch == '!' || ch == '\n')putchar('\n');else {if (ch == 'b')ch = ' ';for (i=0; i<count; ++i)putchar(ch);count = 0;}}return 0;}