HDU-2031-进制转换-2014-01-21 09:32:00

# include<stdio.h>
# include<string.h>
# include<math.h>int main()
{int N,R,t,i,j,num;char s[1100];while(~scanf("%d %d",&N,&R)){if(N>=0){i = 0;while(1){t = N % R;if(t<=9)s[i] = t + '0';elses[i] = t + 'A' - 10;N/=R;if(N==0)break;i++;}for(j=i;j>=0;j--)printf("%c",s[j]);printf("\n");}else{N = abs(N);i = 0;while(1){t = N % R;if(t<=9)s[i] = t + '0';elses[i] = t + 'A' - 10;N/=R;if(N==0)break;i++;}printf("-");for(j=i;j>=0;j--)printf("%c",s[j]);printf("\n");}memset(s,0,sizeof(s));}return 0;
}