addedcodeforgeneralquestion

Signed-off-by: Harsh kumar <68609382+harsh6768-svg@users.noreply.github.com>

Author: harsh6768-svg

General Questions/possible no from word.cpp

@@ -0,0 +1,118 @@
+/* C program to print a given number in words. The program
+handles numbers from 0 to 9999 
+Just take an example  if the user privide the number
+1234 -Input
+One thousand Two hundred and twenty four -Output
+
+
+
+
+*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* A function that prints given number in words */
+void convert_to_words(char* num)
+{
+	int len = strlen(
+		num); // Get number of digits in given number
+
+	/* Base cases */
+	if (len == 0) {
+		fprintf(stderr, "empty string\n");
+		return;
+	}
+	if (len > 4) {
+		fprintf(stderr,
+				"Length more than 4 is not supported\n");
+		return;
+	}
+
+	/* The first string is not used, it is to make
+		array indexing simple */
+	char* single_digits[]
+		= { "zero", "one", "two", "three", "four",
+			"five", "six", "seven", "eight", "nine" };
+
+	/* The first string is not used, it is to make
+		array indexing simple */
+	char* two_digits[]
+		= { "",		 "ten",	 "eleven", "twelve",
+			"thirteen", "fourteen", "fifteen", "sixteen",
+			"seventeen", "eighteen", "nineteen" };
+
+	/* The first two string are not used, they are to make
+		array indexing simple*/
+	char* tens_multiple[] = { "",	 "",	 "twenty",
+							"thirty", "forty", "fifty",
+							"sixty", "seventy", "eighty",
+							"ninety" };
+
+	char* tens_power[] = { "hundred", "thousand" };
+
+	/* Used for debugging purpose only */
+	printf("\n%s: ", num);
+
+	/* For single digit number */
+	if (len == 1) {
+		printf("%s\n", single_digits[*num - '0']);
+		return;
+	}
+
+	/* Iterate while num is not '\0' */
+	while (*num != '\0') {
+
+		/* Code path for first 2 digits */
+		if (len >= 3) {
+			if (*num - '0' != 0) {
+				printf("%s ", single_digits[*num - '0']);
+				printf("%s ",
+					tens_power[len - 3]); // here len can
+											// be 3 or 4
+			}
+			--len;
+		}
+
+		/* Code path for last 2 digits */
+		else {
+			/* Need to explicitly handle 10-19. Sum of the
+			two digits is used as index of "two_digits"
+			array of strings */
+			if (*num == '1') {
+				int sum = *num - '0' + *(num + 1) - '0';
+				printf("%s\n", two_digits[sum]);
+				return;
+			}
+
+			/* Need to explicitely handle 20 */
+			else if (*num == '2' && *(num + 1) == '0') {
+				printf("twenty\n");
+				return;
+			}
+
+			/* Rest of the two digit numbers i.e., 21 to 99
+			*/
+			else {
+				int i = *num - '0';
+				printf("%s ", i ? tens_multiple[i] : "");
+				++num;
+				if (*num != '0')
+					printf("%s ",
+						single_digits[*num - '0']);
+			}
+		}
+		++num;
+	}
+}
+
+/* Driver program to test above function */
+int main(void)
+{
+	convert_to_words("9923");
+	convert_to_words("523");
+	convert_to_words("89");
+	convert_to_words("8");
+
+	return 0;
+}