将数字从国际系统转换为印度系统
原文:https://www . geesforgeks . org/convert-the-number-from-international-system-to-Indian-system/
给定在国际数字系统中用分隔符(，)表示数字的字符串 str ，任务是将该字符串表示转换为印度数字系统。 例:
输入: str = "123，456，789" 输出: 12，34，56，789 说明: 给定的字符串代表国际体系中的一个数字。它被转换为印度体系。 输入: str = "90，050，000，000" 输出: 90，05，00，00，000
国际数字系统:国际编号系统在印度次大陆以外地区使用，表示大数字。它遵循以下模式:
| 数字 | 应用分隔符 | 用语言 | | --- | --- | --- | | one | one | 一个 | | Ten | Ten | 十 | | One hundred | One hundred | 一百 | | One thousand | 1, 000 | 一千 | | ten thousand | 10, 000 | 一万 | | One hundred thousand | 100, 000 | 十万 | | One million | 1, 000, 000 | 一百万 | | Ten million | 10, 000, 000 | 一千万 | | One hundred million | 100, 000, 000 | 一亿 | | One billion | 1, 000, 000, 000 | 十亿 | **印度数字系统:**印度的编号系统在印度次大陆被用来表示大数字。它遵循以下模式: | 数字 | 应用分隔符 | 用语言 | | --- | --- | --- | | one | one | 一个 | | Ten | Ten | 十 | | One hundred | One hundred | 一百 | | One thousand | 1, 000 | 一千 | | ten thousand | 10, 000 | 一万 | | One hundred thousand | 1, 00, 000 | 10 万英镑 | | One million | 10, 00, 000 | 十万 | | Ten million | 1, 00, 00, 000 | 一个亿 | | One hundred million | 10, 00, 00, 000 | 十亿 | | One billion | 100, 00, 00, 000 | 十亿欧元 | **方法:**从上面的表示来看，思路是先得到没有任何分隔符的数字。因此: 1. 从字符串中移除所有分隔符(，)。 2. [倒弦](https://www.geeksforgeeks.org/reverse-a-string-in-c-cpp-different-methods/)。 3. 处理字符串，并在第三个数字后放一个分隔符(，)。 4. 现在在每一秒钟的数字后面放一个分隔符(，)。这将数字转换成*印度数字系统。* 5. 再次反转字符串并打印出来。 以下是上述方法的实现: ## C++// C++ program to convert the number
// from International system
// to Indian system
#include <bits/stdc++.h>
using namespace std;
// Function to convert a number represented
// in International numeric system to
// Indian numeric system.
string convert(string input)
{
// Find the length of the
// input string
int len = input.length();
// Removing all the separators(, )
// from the input string
for (int i = 0; i < len;) {
if (input[i] == ', ') {
input.erase(input.begin() + i);
len--;
i--;
}
else if (input[i] == ' ') {
input.erase(input.begin() + i);
len--;
i--;
}
else {
i++;
}
}
// Reverse the input string
reverse(input.begin(), input.end());
// Declaring the output string
string output;
// Process the input string
for (int i = 0; i < len; i++) {
// Add a separator(, ) after the
// third number
if (i == 2) {
output += input[i];
output += ", ";
}
// Then add a separator(, ) after
// every second number
else if (i > 2 && i % 2 == 0
&& i + 1 < len) {
output += input[i];
output += ", ";
}
else {
output += input[i];
}
}
// Reverse the output string
reverse(output.begin(), output.end());
// Return the output string back
// to the main function
return output;
}
// Driver code
int main()
{
string input1 = "123, 456, 789";
string input2 = "90, 050, 000, 000";
cout << convert(input1) << endl;
cout << convert(input2);
}
// Java program to convert the number
// from International system
// to Indian system
import java.util.*;
class GFG{
// Function to convert a number represented
// in International numeric system to
// Indian numeric system.
static String convert(String input)
{
StringBuilder sbInput = new StringBuilder(input);
// Find the length of the
// sbInput
int len = sbInput.length();
// Removing all the separators(, )
// from the sbInput
for (int i = 0; i < len;)
{
if (sbInput.charAt(i) == ',')
{
sbInput.deleteCharAt(i);
len--;
i--;
}
else if (sbInput.charAt(i) == ' ')
{
sbInput.deleteCharAt(i);
len--;
i--;
}
else
{
i++;
}
}
// Reverse the sbInput
StringBuilder sbInputReverse = sbInput.reverse();
// Declaring the output
StringBuilder output = new StringBuilder();
// Process the sbInput
for (int i = 0; i < len; i++)
{
// Add a separator(, ) after the
// third number
if (i == 2)
{
output.append(sbInputReverse.charAt(i));
output.append(" ,");
}
// Then add a separator(, ) after
// every second number
else if (i > 2 && i % 2 == 0 && i + 1 < len)
{
output.append(sbInputReverse.charAt(i));
output.append(" ,");
}
else
{
output.append(sbInputReverse.charAt(i));
}
}
// Reverse the output
StringBuilder reverseOutput = output.reverse();
// Return the output string back
// to the main function
return reverseOutput.toString();
}
// Driver code
public static void main(String[] args)
{
String input1 = "123, 456, 789";
String input2 = "90, 050, 000, 000";
System.out.println(convert(input1));
System.out.println(convert(input2));
}
}
// This code is contributed by offbeat
# Python3 program to convert
# the number from International
# system to Indian system
# Function to convert a number
# represented in International
# numeric system to Indian numeric
# system.
def convert(input):
# Find the length of the
# input string
Len = len(input)
# Removing all the separators(, )
# from the input string
i = 0
while(i < Len):
if(input[i] == ","):
input = input[:i] + input[i + 1:]
Len -= 1
i -= 1
elif(input[i] == " "):
input=input[:i] + input[i + 1:]
Len -= 1
i -= 1
else:
i += 1
# Reverse the input string
input=input[::-1]
# Declaring the output string
output = ""
# Process the input string
for i in range(Len):
# Add a separator(, ) after the
# third number
if(i == 2):
output += input[i]
output += " ,"
# Then add a separator(, ) after
# every second number
elif(i > 2 and i % 2 == 0 and
i + 1 < Len):
output += input[i]
output += " ,"
else:
output += input[i]
# Reverse the output string
output=output[::-1]
# Return the output string back
# to the main function
return output
# Driver code
input1 = "123, 456, 789"
input2 = "90, 050, 000, 000"
print(convert(input1))
print(convert(input2))
# This code is contributed by avanitrachhadiya2155
12, 34, 56, 789
90, 05, 00, 00, 000
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