Translate the following into Chinese: C program to convert Roman numerals to decimal numbers

Given the following is a C language algorithm to convert Roman numerals to decimal numbers:

Algorithm

Step 1 - Start

Step 2 - Read roman numerals at runtime

Step 3 - Length: = strlen(roman)

Step 4 - For i = 0 to length -1

Step 4.1 - switch(roman[i])

Step 4.1.1 - case 'm':

Step 4.1.2 - case 'M':

Step 4.1.2.1 - d[i]: =1000

Step 4.1.3 - case 'd':

Step 4.1.4 - case 'D':

Step 4.1.4.1 - d[i]: =500

Step 4.1.5 - case 'c':

Step 4.1.6 - case 'C':

Step 4.1.6.1 - d[i]: =100

Step 4.1.7 - case 'l':

Step 4.1.8 - case 'L':

Step 4.1.8.1 - d[i]: =50

Step 4.1.9 - case 'x':

Step 4.1.10 - case 'X':

Step 4.1.10.1 - d[i]: =10

Step 4.1.11 - case 'v':

Step 4.1.12 - case 'V':

Step 4.1.12.1 - d[i]: =5

Step 4.1.13 - case 'i':

Step 4.1.14 - case 'I':

Step 4.1.14.1 - d[i]: =1

Step 5 - For i = 0 to length-1

Step 5.1 - If (i==length-1) or (d[ i]>=d[i 1])

Step 5.1.1 - deci = d[i]

Step 5.2 - Otherwise

Step 5.2.1 - deci - = d[i]

Step 6 - Print the decimal equivalent of the Roman numerals

Step 7 - Stop the

program

The following is the conversion of the Roman numerals to C program for decimal numbers:

#include <stdio.h>
#include <conio.h>
main(){
   char roman[30];
   int deci=0;
   int length,i,d[30];
   printf("The Roman equivalent to decimal</p><p>");
   printf("Decimal:.........Roman</p><p>");
   printf("%5d............%3c</p><p>",1,&#39;I&#39;);
   printf("%5d............%3c</p><p>",5,&#39;V&#39;);
   printf("%5d............%3c</p><p>",10,&#39;X&#39;);
   printf("%5d............%3c</p><p>",50,&#39;L&#39;);
   printf("%5d............%3c</p><p>",100,&#39;C&#39;);
   printf("%5d............%3c</p><p>",500,&#39;D&#39;);
   printf("%5d............%3c</p><p>",1000,&#39;M&#39;);
   printf("Enter a Roman numeral:");
   scanf("%s",roman);
   length=strlen(roman);
   for(i=0;i<length;i++){
      switch(roman[i]){
         case &#39;m&#39;:
         case &#39;M&#39;: d[i]=1000; break;
         case &#39;d&#39;:
         case &#39;D&#39;: d[i]= 500; break;
         case &#39;c&#39;:
         case &#39;C&#39;: d[i]= 100; break;
         case &#39;l&#39;:
         case &#39;L&#39;: d[i]= 50; break;
         case &#39;x&#39;:
         case &#39;X&#39;: d[i]= 10; break;;
         case &#39;v&#39;:
         case &#39;V&#39;: d[i]= 5; break;
         case &#39;i&#39;:
         case &#39;I&#39;: d[i]= 1;
      }
   }
   for(i=0;i<length;i++){
      if(i==length-1 || d[i]>=d[i+1])
         deci += d[i];
      else
         deci -= d[i];
   }
   printf("The Decimal equivalent of Roman numeral %s is %d", roman, deci);
}

Output

When the above program is executed, it produces the following result −

The Roman equivalent to decimal
Decimal:.........Roman
1............ I
5............ V
10............ X
50............ L
100............ C
500............ D
1000............ M
Enter a Roman numeral: M
The Decimal equivalent of Roman Numeral M is 1000

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