hdu 2051 Bitset(水题)

itoa()函数：进制转换函数

#include<iostream>#include<cstdio>#include<stdlib.h>using namespace std;int main(){    int n;    char s[100];    while(~scanf("%d",&n))    {        itoa(n,s,2);        printf("%s\n",s);    }    return 0;}