您的位置:首页 > 其它

poj 2247 Humble Numbers

2012-06-06 09:03 381 查看
//这题与1338的题型是一样的,其做法一样,但是这里的输出需要注意:凡是后两位是11或者是12又或者是13结尾的数字的格式的输出!
#include <iostream>
#include <algorithm>
using namespace std;

long humble[6000];

int main()
{
int i, n2, n3, n5, n7;
humble[1] = 1;
n2 = 1;
n3 = 1;
n5 = 1;
n7 = 1;
for (i = 2; i <= 5900; i++)
{
humble[i] = min(min(humble[n2]*2, humble[n3]*3), min(humble[n5]*5, humble[n7]*7));
if (humble[i] == humble[n2]*2)
n2++;
if (humble[i] == humble[n3]*3)
n3++;
if (humble[i] == humble[n5]*5)
n5++;
if (humble[i] == humble[n7]*7)
n7++;
}

int num;
while (cin >> num && num)
{
int tmp1, tmp2;
tmp1 = num % 10;
tmp2 = num % 100;
if (tmp1 == 1)
{
if (tmp2 == 11)
cout << "The " << num << "th humble number is " << humble[num] << "." << endl;
else
cout << "The " << num << "st humble number is " << humble[num] << "." << endl;
}
else if (tmp1 == 2)
{
if (tmp2 == 12)
cout << "The " << num << "th humble number is " << humble[num] << "." << endl;
else
cout << "The " << num << "nd humble number is " << humble[num] << "." << endl;
}
else if (tmp1 == 3)
{
if (tmp2 == 13)
cout << "The " << num << "th humble number is " << humble[num] << "." << endl;
else
cout << "The " << num << "rd humble number is " << humble[num] << "." << endl;
}
else
cout << "The " << num << "th humble number is " << humble[num] << "." << endl;
}

system("pause");
}
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: