95.將阿拉伯數字轉換為羅馬數字

將大于0小于1000的阿拉伯數字轉換為羅馬數字。阿拉伯數字與羅馬數字的對應關系如下：

*問題分析與算法設計

題目中給出了阿拉伯數字與羅馬數字的對應關系，題中的數字轉換實際上就是查表翻譯。即將整數的百、十、個位依次從整數中分解出來，查找表中相應的行后輸出對應的字符。

*程序與程序設計

#includevoid?main()

{

static?char?*a[][10]={"","I","II","III","IV","V","VI","VII","VIII","IX"

"","X","XX","XXX","XL","L","LX","LXX","LXXX","XCC",

"","C","CC","CCC","CD","D","DC","DCC","DCCC","CM"

};???????????/*建立對照表*/

int?n,t,i,m;

printf("Please?enter?number:");

scanf("%d",&n);???????????/*輸入整數*/

printf("%d=",n);

for(m=0,i=1000;m<3;m++,i/=10)

{

t=(n%i)/(i/10);????????/*從高位向低位依次取各位的數字*/

printf("%s",a[2-m][t]);??????/*通過對照表翻譯輸出*/

}

printf("\n");

}

*運行結果

1.?Please?enter?number:863

863=DCCCLXIII

2.?Please?enter?number:?256

256=CCLVI

3.?Please?enter?number:355

355=CCCLV

4.?Please?enter?number:522

522=DXXII

5.?Please?enter?number:15

15=XV

*思考題

輸入正整數N，產生對應的英文數字符串并輸出，例如：

1???????ONE??????2???TWO??????3???THREE

10??????TEN??????11??ELEVEN

135?????ONE?HUNDRED?THIRTY?FIVE

總結

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