HDU1061 Rightmost Digit
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1061
Rightmost Digit
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 57033 Accepted Submission(s): 21556
Problem Description
Given a positive integer N, you should output the most right digit of N^N.
Input
The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow.
Each test case contains a single positive integer N(1<=N<=1,000,000,000).
Output
For each test case, you should output the rightmost digit of N^N.
Sample Input
2
3
4
Sample Output
7
6
Hint
In the first case, 3 * 3 * 3 = 27, so the rightmost digit is 7.
In the second case, 4 * 4 * 4 * 4 = 256, so the rightmost digit is 6.
Author
Ignatius.L
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只求个位上的数,总结出各个数字的幂的个位变化规律就行,即都是<=4循环
#include<cstdio>#include<cmath>int main(){ int n,N; scanf("%d", &N); while (N--&&scanf("%d", &n)!=EOF) { int mi, temp = 1; if (n % 4 == 0)mi = 4; else mi = n % 4; n = n % 10; while (mi--) temp *= n; printf("%d\n", temp % 10); } return 0;}
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