又是样例能过，提交就错

自己电脑上IDE调试，最起码第一个样例过了，提交OJ上连第一个样例都过不了，是不是抽风了？？？代码如下：

#include <bits/stdc++.h>
using namespace std;

string s[30] = {"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", "twenty","a","both","another","first","second","third"};
int a[] = {0,1,4,9,16,25,36,49,64,81,0,21,44,69,96,25,56,89,24,61,0,1,4,1,1,4,9};
int b[7];       //用来存放每个单词对应的密码 

int main(void){
    string str;     //存放单词
    int j = 0;
    while(cin>>str && str != "."){
        for(int i = 0;i < 30;i++){
            if(s[i] == str) { b[j++] = a[i];break;}
        }
    }
    sort(b,b+j);        //快速排序，把值小的放前面 
    bool flag = false;      //标志，当密码 
    for(int i = 0;i < j;i++){
        if(flag == false && b[i] == 0) continue;
        else if(flag == false && b[i] < 10) printf("%d");
        else if(flag == true && b[i] < 10) printf("%02d");
        else{
            printf("%2d",b[i]);
            flag = true;
        }
    }
    return 0;
}