Write a function with signature uint64_t scanBase6(void) that reads a base-6 number from standard input and returns its value (decimal). Specifically, the function should use getchar() to read characters from standard input until the first non-digit character (or EOF) is encountered, interpreting the digits as part of a base-6 number. Being base-6, valid numbers will only use the digits 0 to 5. For example, the base-6 number 134 has a decimal value of 58, which can be computed as: 1 x 6² +3 x 6¹ + 4 × 6⁰ = 58 Thus, if the input is "134" (with a space after the number), the decimal value 58 should be returned. It is guaranteed in the test cases that: the first character in the input is a digit • only the digits 0 to 5 (inclusive) appear • there are at most 5 digits in the number Your answer may not call any of the following library functions: scanf(), fscanf(), sscanf(), strtol(), strtoll(), strtoq(), atoi (). For example: Input Result uint64_t y = scanBase6(); 134 space 58 printf("%lu\n", y); Test
Write a function with signature uint64_t scanBase6(void) that reads a base-6 number from standard input and returns its value (decimal). Specifically, the function should use getchar() to read characters from standard input until the first non-digit character (or EOF) is encountered, interpreting the digits as part of a base-6 number. Being base-6, valid numbers will only use the digits 0 to 5. For example, the base-6 number 134 has a decimal value of 58, which can be computed as: 1 x 6² +3 x 6¹ + 4 × 6⁰ = 58 Thus, if the input is "134" (with a space after the number), the decimal value 58 should be returned. It is guaranteed in the test cases that: the first character in the input is a digit • only the digits 0 to 5 (inclusive) appear • there are at most 5 digits in the number Your answer may not call any of the following library functions: scanf(), fscanf(), sscanf(), strtol(), strtoll(), strtoq(), atoi (). For example: Input Result uint64_t y = scanBase6(); 134 space 58 printf("%lu\n", y); Test
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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