50 lines
963 B
C
50 lines
963 B
C
/*
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Program: number-conversion'.c (Report comments/bugs to chikh@yuntech.edu.tw)
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Function: 鍵盤讀入一個十進位正整數n及基底b(<=16的整數)，隨後呼叫convert(int n, int b)
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遞迴函數把n以b為基底表示的數字顯示出來；程式能持續轉換新輸入的數字，直到讀取到的n
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為負數方結束執行
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Note: 可以網址 https://bit.ly/3LVUgTg 所載軟體比對本程式產出結果是否正確
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*/
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#include <stdio.h>
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#include <stdlib.h>
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void convert(int n, int base)
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{
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int digit;
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if (n < base) {
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if (n < 10)
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printf("%d",n);
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else
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printf("%c",'A'+(n-10));
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return;
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}
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convert(n/base,base);
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digit = n%base;
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if (digit < 10)
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printf("%d",digit);
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else
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printf("%c",'A'+(digit-10));
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}
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int main()
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{
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int n = 0, base;
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for (;;) {
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printf("\n輸入待轉換的十進位正整數 => ");
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scanf("%d",&n);
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if (n < 0) break;
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printf("\n輸入轉換之基底(<=16) => ");
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scanf("%d",&base);
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printf("(%d)_10 = (",n);
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convert(n,base);
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printf(")_%d\n",base);
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}
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printf("\n程式將結束...");
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return 0;
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}
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