限制:1000ms 32768K
Define the function S(x) for xx is a positive integer. S(x) equals to the sum of all digit of the decimal expression of x. Please find a positive integer k that S(k?x)%233=0.
Input Format
First line an integer T, indicates the number of test cases (T≤100). Then Each line has a single integer x(1≤x≤1000000) indicates i-th test case.
Output Format
For each test case, print an integer in a single line indicates the answer. The length of the answer should not exceed 2000. If there are more than one answer, output anyone is ok.
样例输入
1
1
样例输出
89999999999999999999999999
看来脑洞不够大。。。。
方法一:直接输出233个9。因为任何正整数乘以9的数位和都是9的倍数。。。
#include <iostream> using namespace std; int main() { int T,n; cin>>T; while(T--){ cin>>n; for(int i=1;i<=233;i++){ cout<<9; } cout<<endl; } return 0; }
方法二:
当x<10时可以直接输出233个x,当1000>x>=10时,不妨设k*x=233个x,那么k=10(233个10),当1000<=x<10000,k=100(233个100),等等。手动模拟一下就懂了。
1 #include <iostream> 2 using namespace std; 3 4 int main() 5 { 6 int T,n; 7 cin>>T; 8 while(T--){ 9 cin>>n; 10 int tmp=n; 11 int len=0; 12 while(n){ 13 len++; 14 n/=10; 15 } 16 17 if(len==1){ 18 for(int i=0;i<233;i++) 19 cout<<tmp; 20 }else if(len==2){ 21 for(int i=0;i<233;i++) 22 cout<<"10"; 23 }else if(len==3){ 24 for(int i=0;i<233;i++) 25 cout<<"100"; 26 }else if(len==4){ 27 for(int i=0;i<233;i++) 28 cout<<"1000"; 29 }else if(len==5){ 30 for(int i=0;i<233;i++) 31 cout<<"10000"; 32 }else{ 33 for(int i=0;i<233;i++) 34 cout<<"100000"; 35 } 36 cout<<endl; 37 } 38 return 0; 39 }
时间: 2024-10-23 07:15:00