Created
October 25, 2019 15:20
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十进制转八进制
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#include<stdio.h> | |
#include<stdlib.h> | |
int main() | |
{ | |
int input; | |
scanf("%d",&input);//get the input number | |
int a[10];//get ready for the table of 8*n | |
int b[10];//get ready for the turth table | |
int i=0;//take the possible max of n | |
int oct=1; | |
// for(i=0;oct<input;i++) | |
// { | |
// | |
// oct=oct*8; | |
// printf("%d\n",oct); | |
// } | |
// a=(int*)malloc(sizeof(int*)*i); | |
// b=(int*)malloc(sizeof(int*)*i); | |
a[0]=1; | |
//printf("ok"); | |
//printf("%d",i); | |
for(int k=1;k<=9;k++) | |
{ | |
//printf("ok"); | |
a[k]=8*a[k-1];//get the table | |
} | |
//printf("ok"); | |
for(int k=9;k>=0;k--) | |
{ | |
b[k]=input/a[k]; | |
input=input%a[k]; | |
//printf("%d\n",input); | |
} | |
for(int k=9;k>=0;k--) | |
{ | |
printf("%d",b[k]); | |
} | |
return 0; | |
} | |
//速度较快 |
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#include<stdio.h> | |
#define MAXNUM 10 | |
int main() | |
{ | |
int shengyu,bajinzhi[MAXNUM],count=0,jishu; | |
printf("shuru shijinzhi shuzi\n"); | |
scanf("%d",&shengyu); | |
while(shengyu!=0) | |
{ | |
bajinzhi[count]=shengyu%8; | |
printf("bajinzhi[%d]=%d\n",count,bajinzhi[count]); | |
shengyu=shengyu/8; | |
count++; | |
} | |
for(jishu=count-1;jishu>=0;jishu--) | |
printf("%d",bajinzhi[jishu]); | |
return 0; | |
} | |
//实现简单,但是速度略慢 |
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