leetcode第168题-Excel Sheet Column Title

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

char *convertToTitle(int n) {
    char *s;
    int fac=26,size=0,num=n,i=1;
    while(num>0) {
        num=(num - 1) / 26;
        size++;
    }
    s=(char*)malloc(size*sizeof(char));
    while(n>0){
        n--;
        *(s+size-i)=(char)(n%fac+'A')+*s;
        n/=fac;
        i++;
    }
    return s;
}
int main()
{
	int x;
	while(scanf("%d",&x)!=EOF)
	{
		printf("%s\n",convertToTitle(x));
	}
	return 0;
}

leetcode第168题-Excel Sheet Column Title

原文：http://blog.csdn.net/zyh920521/article/details/44758725