杭电 Euler theorem
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Problem Description
HazelFan is given two positive integers a,b , and he wants to calculate amodb . But now he forgets the value of b and only remember the value of a , please tell him the number of different possible results.
Input
The first line contains a positive integer T(1≤T≤5) , denoting the number of test cases.
For each test case:
A single line contains a positive integera(1≤a≤109) .
For each test case:
A single line contains a positive integer
Output
For each test case:
A single line contains a nonnegative integer, denoting the answer.
A single line contains a nonnegative integer, denoting the answer.
Sample Input
213
Sample Output
23
思路:找规律!!列出前几组递推可得规律
AC代码如下:
#include <iostream>#include <cstdio>using namespace std;int main(){ int n,num; cin>>n; while(n--) { cin>>num; if(num%2==1) num++; cout<<num/2+1<<endl; } return 0;}
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