HDU 2054 A == B ?（找小数点）

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题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=2054

Problem Description

Give you two numbers A and B, if A is equal to B, you should print "YES", or print "NO".

Input

each test case contains two numbers A and B.

Output

for each case, if A is equal to B, you should print "YES", or print "NO".

Sample Input

1 22 23 34 3

Sample Output

NOYESYESNO

思路：

此题关键是找小数点，找到小数点把最后面无效的零去掉再比较就OK；

代码如下：

#include <cstdio>#include <cstring>char a[100017], b[100017];void re(char s[]){    int len = strlen(s);    int p = 0;    for(int i = 0; i < len; i++)    {        if(s[i] == '.')        {            p = 1;            break;        }    }    if(p)    {        for(int i = len-1; i >= 0; i--)        {            if(s[i] == '0')                s[i] = '\0';            else                break;            len--;        }        if(s[len-1] == '.')            s[len-1] = '\0';    }}int main(){    while(~scanf("%s%s",a,b))    {        re(a);       // printf("%s\n",a);        re(b);       // printf("%s\n",b);        if(strcmp(a,b))            printf("NO\n");        else            printf("YES\n");    }    return 0;}

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